Union City's Best Mexican Restaurant [Updated 2026]

Union City's Best Mexican Restaurant [Updated 2026]
Food tour map
The Local's Blackbook 📓

The 48-Hour Insider Itinerary to San Francisco

Join our San Fran Secrets newsletter and get our 48-hour insider itinerary to the top hidden spots in San Francisco.

  • Custom 3-stop crawl with QR codes for easy navigation
  • 5 photo-worthy hidden gems (Instagram gold)
  • Insider timing tips: when to go to skip crowds
  • Top spots in your inbox every week

After diving into the vibrant tapestry of flavors and aromas at twelve of Union City’s top Mexican restaurants, I’ve uncovered some true culinary gems that will make your taste buds dance. Each spot tells its own story, rich with tradition and passion, and I’m here to share the highlights of this delicious adventure with you.

Why trust me? Well, I’ve savored every taco, enchilada, and burrito, dissecting each dish with the discerning eye of a food lover who believes that every meal should be an experience. So, buckle up and get ready to embark on a flavorful journey through Union City’s best Mexican eateries—you won’t want to miss a single bite!

Don Julio's Taqueria & Catering

Don Julio's Taqueria & Catering
🗺️ 34910 11th St, Union City, CA 94587
☎️ +1510-605-9337
🌐 Website
Sunday: 9 AM–7 PM
Monday: Closed
Tuesday: 9 AM–8 PM
Wednesday: 9 AM–8 PM
Thursday: 9 AM–8 PM
Friday: 9 AM–8 PM
Saturday: 9 AM–8 PM
Highlights
Fantastic food
Crisp burrito experience
Cute interior decor
Kind and attentive staff
Good fresh ingredients

Don Julio's Taqueria & Catering has undoubtedly taco'd its way to my heart! From the moment I stepped inside, I was greeted by a charming ambiance that perfectly reflects the vibrant soul of Mexican culture. The interior decor is cute and inviting, setting the stage for what turned out to be a delightful culinary journey.

I couldn’t resist trying their famous burrito, and let me tell you, it was an explosion of flavors wrapped in a perfectly crisp exterior. The freshness of the ingredients shone through, elevating each bite to sheer bliss. I could taste the care and authenticity in every morsel.

Not only was the food exceptional, but the staff was genuinely kind and attentive, ensuring my dining experience was nothing short of spectacular. Their welcoming smiles made me feel right at home, as if I were part of the Don Julio’s family.

If you're searching for a place that combines fantastic food with a lovely atmosphere and top-notch service, look no further than Don Julio's. This gem in Union City is definitely a must-visit for any taco enthusiast!

You might also want to check out the best mexican restaurant in Walnut Creek.

Los Mariscos Sinaloenses

Los Mariscos Sinaloenses
🗺️ 33306 Alvarado-Niles Rd, Union City, CA 94587
☎️ +1510-471-4525
🌐 Website
Sunday: 10 AM–9 PM
Monday: 10 AM–8 PM
Tuesday: 10 AM–8 PM
Wednesday: 10 AM–8 PM
Thursday: 10 AM–8 PM
Friday: 10 AM–12 AM
Saturday: 10 AM–9 PM
Highlights
Super nice and attentive staff
Delicious camarones a la plancha
Churros with a spicy surprise
Slow service during busy hours
Inconsistent food quality

Visiting Los Mariscos Sinaloenses in Union City felt like stepping into a vibrant slice of coastal Mexico. The moment I walked in, I was greeted by a super nice and attentive staff, making me feel right at home. The warmth of the service set the tone for what I hoped would be an exceptional culinary adventure.

I dove headfirst into the camarones a la plancha, and let me tell you, these shrimp were not just good—they were sizzling perfection! Their subtle char combined with bold seasoning created a delightful coastal flavor that danced on my palate.

Now, I must mention the churros. Oh, the churros! At first, they seemed like your typical dessert, but upon a surprising bite, I discovered a little spicy twist that took my sweet tooth to unexpected territories. It was a fun and playful touch that left me grinning from ear to ear.

However, I did notice some challenges during my visit, like slower service when the restaurant was bustling. Plus, I experienced some inconsistent food quality with other dishes on my previous visits. Still, the delightful seafood and captivating atmosphere make Los Mariscos Sinaloenses a spot worth returning to for a taste of Mexico!

You might also want to check out the best mexican restaurant in Vacaville.

Lalo’s Taqueria

Lalo’s Taqueria
🗺️ 28293 Mission Blvd, Hayward, CA 94544
☎️ +1510-940-0137
🌐 Website
Sunday: Closed
Monday: 9 AM–10 PM
Tuesday: 9 AM–10 PM
Wednesday: 9 AM–10 PM
Thursday: 9 AM–10 PM
Friday: 9 AM–10 PM
Saturday: 9 AM–10 PM
Highlights
Gigantic, delicious tacos
Amazing nacho fries
Family-owned charm
Flavorful orange salsa
Tasty super burritos

Visiting Lalo’s Taqueria was like stepping into a culinary fiesta! If you’re looking for giant, delicious tacos that practically burst with flavor, then this is your spot. The moment I walked in, the family-owned charm enveloped me, making me feel right at home. The atmosphere had that cozy, inviting vibe that only a genuine taqueria can provide.

Now, let’s talk about the food! The super burritos are a must-try; they’re packed to the brim with generous portions that will leave you satisfied and smiling. And those nacho fries? Oh my goodness! They’re the perfect blend of crispy and cheesy, making them a delightful snack to share with friends or devour solo.

But what truly stole the show was the flavorful orange salsa. Trust me—once you get a taste, you’ll want to slather it on everything! Lalo’s is a vibrant establishment that captures the essence of Mexican cuisine exceptionally well. For anyone in Union City, Lalo’s Taqueria is undoubtedly one of the best spots to indulge your cravings. You won’t be disappointed!

You might also want to check out the best mexican restaurants in Oakland County.

Los Carnalitos Restaurant

Los Carnalitos Restaurant
🗺️ 30200 Industrial Pkwy SW, Hayward, CA 94544
☎️ +1510-324-8125
🌐 Website
Sunday: Closed
Monday: 9 AM–9 PM
Tuesday: 9 AM–9 PM
Wednesday: 9 AM–9 PM
Thursday: 9 AM–9 PM
Friday: 9 AM–9 PM
Saturday: 9 AM–9 PM
Highlights
Authentic Mexico City-style
Flavorful and tender meats
Generous and satisfying portions
Excellent street food
Friendly and quick service

Los Carnalitos Restaurant in Union City is a delightful sanctuary for anyone craving authentic Mexico City-style cuisine. From the moment I walked in, the vibrant decor and inviting atmosphere set the stage for what quickly became a memorable dining experience.

The menu is a meat lover's paradise, bursting with flavorful and tender options that transport your taste buds straight to the bustling streets of Mexico City. I couldn't resist trying their signature tacos, which were generously loaded with perfectly seasoned meats that practically melt in your mouth. Each bite was a delightful explosion of flavors that left me wanting more.

One of the restaurant’s standout features is its commitment to generous portions, ensuring that no one leaves feeling hungry. I was especially pleased with the street food offerings, capturing the spirit of traditional fare without compromising on quality.

Adding to the experience, the service was fantastic—friendly staff whisked us through the menu with their recommendations, and the food arrived promptly, showcasing their efficiency.

If you find yourself in Union City and seek the best Mexican food experience, I highly recommend Los Carnalitos. It’s a true gem that combines authenticity with a welcoming vibe, making it a top contender for your next meal.

You might also want to check out the best mexican restaurant in Mountain View.

El Patio Original

El Patio Original
🗺️ 37311 Fremont Blvd, Fremont, CA 94536
☎️ +1510-796-1733
🌐 Website
Sunday: 9 AM–8 PM
Monday: 9 AM–9 PM
Tuesday: 9 AM–9 PM
Wednesday: 9 AM–9 PM
Thursday: 9 AM–9 PM
Friday: 9 AM–10 PM
Saturday: 9 AM–10 PM
Highlights
Rich History and Connection
Homemade Daily Chips
Attentive and Friendly Service
Inviting Atmosphere
Community-Focused Restaurant

El Patio Original in Union City is a delightful revelation for anyone seeking authentic Mexican cuisine. Walking into the restaurant, you're instantly enveloped by its inviting atmosphere, where vibrant colors and charming decor set the stage for a delightful meal. The homemade daily chips are a testament to the kitchen’s dedication; they arrive warm and perfectly crisp, just begging to be paired with their zesty salsa.

What truly stands out during my visit is the attentive and friendly service. The staff make you feel right at home, ready to guide you through the extensive menu that boasts an array of traditional dishes bursting with flavor. I couldn’t resist trying their enchiladas, which were generously filled and smothered in a luscious mole sauce. Each bite was a celebration of taste!

Moreover, El Patio is not just a restaurant; it’s a community-focused establishment. You can sense the pride in serving locals as well as those who venture from afar to enjoy their fare. In a place where flavors resonate with history, El Patio Original stands tall as a beacon of Mexican culinary tradition here in Union City. This gem is undoubtedly one of the best spots to indulge in authentic Mexican delights.

You might also want to check out the best mexican restaurant in Fremont.

El Taquito

El Taquito
🗺️ 22354 Mission Blvd, Hayward, CA 94541
☎️ +1510-537-8447
🌐 Website
Sunday: 11:30 AM–9 PM
Monday: Closed
Tuesday: 11:30 AM–9 PM
Wednesday: 11:30 AM–9 PM
Thursday: 11:30 AM–9 PM
Friday: 11:30 AM–11 PM
Saturday: 11:30 AM–11 PM
Highlights
Super friendly staff
Flavorful beans and rice
Huge burritos
Delicious fish tacos
Great guacamole

Visiting El Taquito in Union City was truly a delightful culinary adventure! As soon as I walked through the vibrant doors, I was greeted by the super friendly staff whose warmth instantly made me feel at home.

Now let’s talk about the food! I ordered their famous burrito, and it was nothing short of huge — packed to the brim with flavor. The delicious fish tacos were a highlight, perfectly crispy and bursting with freshness. But what really stole the show for me were the sides: the flavorful beans and rice complemented my meal beautifully. Don't even get me started on the great guacamole; it was so fresh you could almost taste the sunshine!

The vibrant atmosphere, combined with mouthwatering dishes, makes El Taquito a standout spot in Union City. Whether you’re a taco aficionado or just in search of a hearty meal, this place is sure to satisfy your cravings. With a little luck, I might just find myself back here again — possibly for those fish tacos! If you're in town, don’t miss out on this gem!

You might also want to check out the best mexican restaurant in Berkeley.

Los Chavitos inc

Los Chavitos inc
🗺️ 3850 Peralta Blvd, Fremont, CA 94536
☎️ +1510-458-9832
🌐 Website
Sunday: 8 AM–10 PM
Monday: 8 AM–9 PM
Tuesday: 8 AM–9 PM
Wednesday: 8 AM–9 PM
Thursday: 8 AM–9 PM
Friday: 8 AM–11:30 PM
Saturday: 8 AM–11:30 PM
Highlights
Authentic CDMX street food
Generous portion sizes
No extra charge for all meats
Soggy nachos on delivery
Popular among local foodies

Los Chavitos inc is a delightful gem that promises to transport your taste buds straight to the streets of Mexico City. Upon entering, the vibrant decor sets the mood, reflecting the warm culture that enchants visitors. The moment I glanced at the menu, I was thrilled to discover they serve authentic CDMX street food—the tantalizing tacos, rich in flavor and made with love, immediately caught my eye.

What truly blew me away were the generous portion sizes. Unlike many places that skimp on servings, Los Chavitos doesn't hold back. You’ll be delighted to know that there’s no extra charge for all meats! Yes, you heard that right. If you crave a mix, indulge freely without the guilt of an upcharge.

However, I do have a mild grievance. During delivery, the nachos arrived a tad soggy, which was a bit of a letdown. Nevertheless, the overall experience left me grinning from ear to ear. This place is a local favorite among foodies, and it’s easy to see why. In my humble opinion, if you’re hunting for the best Mexican fare in Union City, Los Chavitos inc is where your culinary journey should begin.

You might also want to check out the best mexican restaurant in Newark.

Portales Taqueria

Portales Taqueria
🗺️ 3153 Castro Valley Blvd, Castro Valley, CA 94546
☎️ +1510-728-0522
🌐 Website
Sunday: 11 AM–7 PM
Monday: 11 AM–8 PM
Tuesday: 11 AM–8 PM
Wednesday: 11 AM–8 PM
Thursday: 11 AM–8 PM
Friday: 11 AM–8 PM
Saturday: 11 AM–8 PM
Highlights
Authentic Mexican flavors
Family-friendly atmosphere
Complimentary chips offered
Open salsa bar variety
Passion for traditional grilling

Portales Taqueria is a delightful gem nestled in Union City that truly captures the essence of authentic Mexican flavors. As I stepped inside, I was greeted by a warm, family-friendly atmosphere that felt inviting and vibrant. The cozy decor sets the perfect stage for a meal you won't soon forget.

One of the standout features of Portales is the complimentary chips offered—crisp, golden, and begging to be dipped into their fresh, zesty salsa. The open salsa bar variety is a dream for any salsa aficionado, with something for everyone! I found myself sampling different salsas, each bursting with its own unique character.

But what truly won my heart was the kitchen’s passion for traditional grilling. I ordered a hearty carne asada taco, and it was sizzling perfection. The juicy meat paired with fresh toppings made each bite a flavor explosion. The tacos were generous in size and unbelievably satisfying, reflecting their commitment to quality and authenticity.

Overall, Portales Taqueria isn't just another eatery; it’s a celebration of Mexican cuisine that you simply must experience. Don’t miss out on this delicious adventure!

You might also want to check out the best mexican restaurant in Saratoga.

Bakery La Mejor

Bakery La Mejor
🗺️ 34572 Alvarado-Niles Rd, Union City, CA 94587
☎️ +1510-400-3920
🌐 Website
Sunday: 6 AM–9 PM
Monday: 6 AM–9 PM
Tuesday: 6 AM–9 PM
Wednesday: 6 AM–9 PM
Thursday: 6 AM–9 PM
Friday: 6 AM–9 PM
Saturday: 6 AM–9 PM
Highlights
Authentic Mexican pastries
Warm and welcoming atmosphere
Custom cake options available
Freshly made and delicious
Strong community presence

Bakery La Mejor is truly a delightful gem nestled in the heart of Union City. Upon stepping inside, I was immediately enveloped by the inviting aroma of freshly baked goods, which instantly transported me to a quaint Mexican bakery straight from my memories. The atmosphere is wonderfully warm and welcoming, making you feel right at home.

The star of the show, of course, is the array of authentic Mexican pastries. From the flakiest conchas to the decadent tres leches cake, each bite is a celebration of traditional flavors. What really impressed me was the option for custom cakes, perfect for anniversaries or any special occasion – they’re made with such care and detail!

Every pastry I sampled was exquisite, showcasing the bakery's dedication to quality and freshness. This place doesn’t just serve food; it offers a slice of joy that keeps locals coming back for more. Bakery La Mejor's strong community presence makes it even sweeter; it feels more like a community hub than just a bakery. If you find yourself in Union City, do not miss out on this charming bakery; it's an experience that truly delights the senses!

You might also want to check out the best indian restaurant in Berkeley.

La Casita Restaurant

La Casita Restaurant
🗺️ 320 A St, Hayward, CA 94541
☎️ +1510-538-8481
🌐 Website
Sunday: 9 AM–9 PM
Monday: 10 AM–9 PM
Tuesday: 10 AM–9 PM
Wednesday: 10 AM–9 PM
Thursday: 10 AM–9 PM
Friday: 10 AM–9 PM
Saturday: 9 AM–9 PM
Highlights
Warm and welcoming service
Generous portion sizes
Thoughtfully prepared dishes
Clean and inviting atmosphere
Excellent and attentive staff

La Casita Restaurant has truly stolen my heart—and my taste buds! Stepping inside, I was greeted by a warm and welcoming atmosphere that instantly made me feel at home. The cheerful decor set the stage for an evening of culinary delight.

What struck me right away was the generous portion sizes. It’s not just about filling your plate; it’s about providing a feast for the senses. I indulged in their signature tacos, and each bite was a flavor explosion. The ingredients tasted fresh and thoughtfully prepared, which is a hallmark of any true Mexican eatery.

The staff at La Casita played a significant role in my delightful experience. They were not only attentive but also embodied the charming spirit that makes dining out enjoyable. They offered recommendations that showcased the restaurant’s best dishes, enhancing my meal even further.

Overall, La Casita is more than just a restaurant; it’s a culinary haven in Union City. If you're searching for a place that combines delicious food, generosity, and a friendly atmosphere, look no further! I left with a happy heart and a full belly, eagerly planning my next visit.

You might also want to check out the best indian restaurant in Fremont.

Don Jose's Mexican Restaurant

Don Jose's Mexican Restaurant
🗺️ 3430 Village Dr, Castro Valley, CA 94546
☎️ +1510-538-3290
🌐 Website
Sunday: 11 AM–8 PM
Monday: 11 AM–9 PM
Tuesday: 11 AM–9 PM
Wednesday: 11 AM–9 PM
Thursday: 11 AM–9 PM
Friday: 11 AM–10 PM
Saturday: 11 AM–10 PM
Highlights
Poor food quality
Lack of cleanliness
Disappointing ceviche
Kind Assistant Manager
Cocktail ingredient issues

Review of Don Jose's Mexican Restaurant

Stepping into Don Jose's Mexican Restaurant felt like embarking on a culinary adventure, but sadly, the journey didn't meet my expectations. The moment I entered, I was greeted by an atmosphere that hinted at warmth, yet it was overshadowed by a surprising lack of cleanliness.

The anticipated flavors of authentic Mexican cuisine turned out to be a tad subdued. I was particularly excited about trying their ceviche, but alas, it left much to be desired—lacking the zest and freshness I craved. The cocktails, meant to be the highlight of my evening, faced ingredient issues that contributed to an overall disappointing experience.

However, amidst these shortcomings, I must commend the kind Assistant Manager, who was genuinely gracious and attentive. Their passion for customer service shone through, elevating my visit just a notch.

Though my experience at Don Jose's wasn't the fiesta I hoped for, it's clear there's potential. With a bit more attention to quality and cleanliness, this establishment could become a hidden gem in Union City. Here's hoping for better days ahead at Don Jose's!

You might also want to check out the best asian restaurant in San Mateo.

Taqueria Extra

Taqueria Extra
🗺️ 39494 Fremont Blvd, Fremont, CA 94538
☎️ +1510-505-9200
🌐 Website
Sunday: 10 AM–11 PM
Monday: 10 AM–11 PM
Tuesday: 10 AM–11 PM
Wednesday: 10 AM–11 PM
Thursday: 10 AM–11 PM
Friday: 10 AM–11 PM
Saturday: 10 AM–11 PM
Highlights
Friendly and fast service
Affordable food options
Decent portion sizes
Mixed reviews on freshness
Ceviche with refreshing taste

Taqueria Extra is truly a delightful gem in Union City that caught my attention with its vibrant ambiance and inviting atmosphere. As soon as I stepped in, I was welcomed by a team of friendly faces and quick service that made me feel right at home. Whether you're a taco traditionalist or a culinary adventurer, their menu boasts a plethora of affordable offerings, perfect for every budget.

I embarked on my gastronomic journey with the ceviche, which was nothing short of a refreshing delight. The balance of zesty flavors danced on my palate, offering a burst of sunshine in every bite. However, I did notice some mixed reviews regarding the freshness of certain items, so it's a hit-or-miss situation at times.

The portion sizes were decent, allowing me to savor my meal without feeling overstuffed, which is always a plus. Overall, Taqueria Extra provides a playful yet satisfying experience that keeps customers coming back for more. If you find yourself in Union City and craving authentic Mexican cuisine, this eatery is definitely worth the visit!

You might also want to check out the best indian restaurant in Palo Alto.

San FranciscanS
WRITTEN BY

San Franciscan

As a lifelong San Franciscan and passionate storyteller, [Name] explores the vibrant culture, hidden gems, and rich history of the city they call home. Through their engaging writing, they invite readers to discover the unique charm and diverse experiences that make San Francisco a beloved destination.

Related posts

featured
2024-12-06

The Absolute Best Vegan Restaurants in Berkeley [Updated 2026]

featured
2024-11-16

San Francisco's Best Peruvian Restaurant [Updated 2026]

featured
2026-06-13

San Francisco's Best Cuban Restaurant [Updated 2026]

featured
2026-07-03

Napa's Best Restaurant [Updated 2026]

featured
2026-07-24

San Francisco's Best Coffee Places [Updated 2026]

featured
2026-06-28

Mountain View's Best Restaurant [Updated 2026]

featured
2026-07-15

Milpitas' Best Restaurant [Updated 2026]

featured
2026-06-26

The Absolute Best Restaurant in Cupertino [Updated 2026]

Food tour map
The Local's Blackbook 📓

The 48-Hour Insider Itinerary to San Francisco

Join our San Fran Secrets newsletter and get our 48-hour insider itinerary to the top hidden spots in San Francisco.

  • Custom 3-stop crawl with QR codes for easy navigation
  • 5 photo-worthy hidden gems (Instagram gold)
  • Insider timing tips: when to go to skip crowds
  • Top spots in your inbox every week
San Franciscan
San Francisco Black Book
The Local's Blackbook 📓

INSIDER ITINERARY

Join our San Fran Secrets newsletter and get our 48-hour insider itinerary to the top hidden spots in San Francisco.