Best Mexican food in Fontana

Serving Authentic Mexican Homemade Meals with Love

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Treat yourself to our must-try list that has everyone talking

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Fajita Tostada

A flat four shell tostada with beans, rice, grilled onions, bell peppers, topped with cheese, onion, tomato, cilantro, sour cream and guacamole. Choice of carne asada, carnitas, grilled chicken or grilled shrimp for an additional price

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Upside Down Tostada

Fire roasted pasilla chile grilled with onion and chicken placed over a flat flour shell tostada with beans and rice covered with an additional tostada and our green pork sauce and melted cheese. Served with sour cream

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Mexican Fajita Tostada

A flat flour shell tostada with beans, rice, fire roasted pasilla chiles, grilled onions, bacon, topped with cheese, onion, tomato, cilantro, sour cream and guacamole. Choice of carne asada, carnitas, grilled chicken or grilled shrimp for an additional price

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Steak Ranchero

A ribeye steak

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Steak & Shrimp

A ribeye steak with four garlic shrimp

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Menudo

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Welcome to Sergio's Mexican Restaurant

Hey there, food lovers! Welcome to Sergio's Mexican Restaurant, where every meal is crafted with love and tradition. Enjoy authentic, homemade Mexican cuisine made from the finest ingredients. Whether you're here for a quick bite or celebrating with family, we promise a delicious experience. Come taste the bold flavors of Mexico and feel right at home with our warm hospitality. We can't wait to serve you!

Grilled Fish Fillet in Garlic Butter

Savor the delicate taste of our Grilled Fish Fillet in garlic butter, served with handmade corn tortillas. This Pescado a la Plancha is a perfect balance of fresh, flavorful, and satisfying.

Taste of the Sea!

Carne Asada Plate – Satisfy Your Cravings

Indulge in our Carne Asada Plate, featuring tender, juicy carne asada, flavorful rice & beans, fresh guac & salsa, and warm tortillas. Grilled to perfection, it's a bold, savory meal you can't miss!

Taste the Perfection!

Shrimp Ranchero – A Bold, Flavorful Seafood

Dive into our Shrimp Ranchero, featuring succulent shrimp in a zesty, savory ranchero sauce. Paired with fresh ingredients, this dish is a delicious burst of flavor you won’t want to miss.

Savor the Flavor!

Order from Our Website

Skip the wait and enjoy your favorite dishes delivered straight to your door. Order now from our website for a seamless, delicious experience with just a few clicks!

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Feast Your Eyes on Our Delicious Dishes!

Discover Sergio's Mexican Restaurant

Sergio's Mexican Restaurant may be new to Fontana, but we have a rich history of serving delicious Mexican cuisine in Glendora for over 38 years. We're a family-owned restaurant dedicated to providing authentic, homemade dishes with the freshest ingredients. Whether you're here for a casual meal or a special celebration, we invite you to experience the warmth and flavor of Sergio's.

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Now Serving Cold Beer, Micheladas & Margaritas!

Cool off and unwind with our refreshing selection of cold beer, zesty Micheladas, and classic Margaritas! Whether you're enjoying a meal with friends or just relaxing, these drinks are the perfect way to enhance your experience at Sergio's. Come sip, relax, and enjoy the best of Mexican flavors with a drink in hand!

Fiesta, Flavors, and Unforgettable Moments!

Elevate your next event with our authentic Mexican catering! From sizzling fajitas to savory enchiladas, every dish is crafted with love and bold flavors. Whether it’s a casual gathering or a grand celebration, we’ll bring the fiesta to you. Let’s make your event unforgettable—book today!

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What our guests are saying

Check out our most recent reviews!

Food was really good but part i loved the most was the prices. Definitely coming back to try something else.

Mike G.

I had the carnitas plate & was so good. It came with some bomb home made tortillas sooooo good.

Cindi P.

Sergio's is a great authentic Mexican restaurant. The enchaldas montadas was great.

Michael B.

Featuring

Catering

Delivery

Takeout

Dine In

Has Private Dining Room

Serves Vegetarian Dishes

Has Kids' Menu

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