Sergio's Mexican Restaurant
17284 Foothill Blvd suite f, Fontana
(909) 333-1681
Customers' Favorites
Hard Shell Tacos Dorados
Cheese Enchiladas Combo
Breakfast Burrito
Pork Carnitas lb
Carnitas Burrito
Mexican Fajitas
Salsa for Chips
Chips and Salsa
Steak Ranchero
Prawn Cocktail
Tacos
East La Taco
Double-wrapped tortillas with a choice of meat, onion, cilantro, and spicy chipotle sauce. Choice of meats includes carne asada, carnitas, or grilled chicken.
Taquitos
An order of 3 taquitos with a choice of shredded beef, shredded chicken, or potato served with a side of guacamole.
Taco Dorado
Hard shell taco with choice of meat, lettuce, and cheese choice of shredded beef, shredded chicken, potato, or ground beef.
Homemade Taco
A homemade tortilla with a choice of carne asada, carnitas, or grilled chicken and guacamole, onion, tomato, and cilantro.
Fish or Shrimp Taco
A homemade tortilla with a choice of grilled fish or grilled shrimp, mayonnaise, green cabbage, onion, tomato, and cilantro.
Salads
Carnitas Salad
Carnitas cooked over a grill for a crispy taste over a bed of green salad topped with tomato, onion, cilantro, and guacamole.
Grilled Chicken Salad
Grilled chicken breast over a bed of green salad topped with cheese, tomato, and avocado.
Fish Salad
Grilled swai fillet in our garlic butter served over a bed of green salad.
Dinner Salad
Large Salad
Fajita Salad
Sizzled bell pepper, onion, and a choice of meat over a bed of salad topped with cheese and guacamole. Choose from carnitas, steak, or grilled chicken.
Burritos
Wet Burrito
Carne Asada Burrito
Carne asada with beans, cheese, onion, tomato, and cilantro. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
California Burrito
Carne asada, fries, guacamole, sour cream, beans, cheese, onion, tomato, and cilantro. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Bean and Cheese Burrito
Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Grilled Chicken Burrito
Grilled chicken beans, cheese, onion, tomato, and cilantro. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Chile Relleno Burrito
Chile Relleno with beans, rice, cheese, and our ranchera potato sauce. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Veggie Burrito
Rice, beans, cheese, sour cream, lettuce, onion, tomato, and cilantro. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Chorizo, Potato, and Egg Burrito
Scrambled eggs, chorizo, potatoes with beans, and cheese. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Carnitas Burrito
Carnitas with beans, cheese, onion, tomato, and cilantro. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Grilled Vegetable Burrito
Seasoned grilled vegetables, beans, cheese, lettuce, onion, tomato, and cilantro. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Fajitas Burrito
Grilled bell pepper, onion, tomato, choice of carne asada, carnitas, or grilled chicken with beans, and cheese. Try your burrito oven style with one of our specialty sauces and melted cheese. Choose from red enchilada sauce, green pork sauce, or ranchero potato sauce.
Tostadas
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.
Fajita Tostada
A flat four-shell tostada with beans, rice, grilled onions, and bell peppers, topped with cheese, onion, tomato, cilantro, sour cream, and guacamole. Choice of carne asada, carnitas, grilled chicken, or grilled shrimp.
Tostada Grande
Large flour shell tostada served with beans, lettuce, cheese, sour cream, and guacamole. Add shredded beef, shredded chicken, or grilled chicken.
Mexican Fajita Tostada
A flat flour shell tostada with beans, rice, fire-roasted pasilla chiles, grilled onions, and bacon, topped with cheese, onion, tomato, cilantro, sour cream, and guacamole. Choice of carne asada, carnitas, grilled chicken, or grilled shrimp.
Soups
Chicken Soup (Caldo de Pollo)
Served with a side of rice and tortillas.
Albondigas Soup
Served with a side of rice and tortillas.
Caldo de Res
Served with a side of rice and tortillas.
Pozole Soup
Menudo Soup
Fish Soup
Served with a side of rice and tortillas.
Children's Menu
Cheese Quesadilla
Children's plates are served with rice, beans, and a soft drink.
Cheese Enchilada
Children's plates are served with rice, beans, and a soft drink.
Bean and Cheese Burrito
Children's plates are served with rice, beans, and a soft drink.
Taquito
Children's plates are served with rice, beans, and a soft drink.
Hard Shell Taco
Children's plates are served with rice, beans, and a soft drink.
Antojitos
Asada Fries
Fries topped with beans, cheese, carne asada, onion, tomato, cilantro, sour cream, and guacamole.
Nachos
Chips topped with beans, cheese, onion, tomato, cilantro, sour cream, and guacamole. Add a choice of carne asada, carnitas, or grilled chicken.
Shrimp Cocktail
Shrimp in our unique cocktail sauce with onion, tomato, cilantro, and diced avocado.
Mulita
Homemade tortilla quesadilla with cheese and choice of carne asada, carnitas, or grilled chicken.
Quesadilla
Large flour tortilla with cheese and choice of carne asada, carnitas, or grilled chicken. Served with a side of guacamole and sour cream.
Fish or Shrimp Ceviche
Combinations
Combo 1
Combo 2
Two Enchiladas Combination
Combination plates are served with rice and beans.
Two Hard Shell Tacos Combination
Combination plates are served with rice and beans.
Taco and Enchilada Combination
Combination plates are served with rice and beans.
Taco and Chile Relleno Combination
Combination plates are served with rice and beans.
Enchilada and Chile Relleno Combination
Combination plates are served with rice and beans.
One Chile Relleno Combination
Combination plates are served with rice and beans.
Chicken Flautas Combination
Two chicken flautas served with a side of guacamole and sour cream. Combination plates are served with rice and beans.
One Taco Combination
Combination plates are served with rice and beans.
Taco and Two Taquitos Combination
Combination plates are served with rice and beans.
Quesadilla Combination
Combination plates are served with rice and beans.
One Enchilada Combination
Combination plates are served with rice and beans.
Two Taquitos Combination
Combination plates are served with rice and beans.
Especiales
Garlic Shrimp
Shrimp grilled in our special garlic butter is simply delicious. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Steak Ranchero
A ribeye steak. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Steak & Shrimp
A ribeye steak with four garlic shrimp. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Chicken Mole
Traditional chocolate mole. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Chile Relleno
A homemade chile relleno stuffed with monterey jack cheese covered in egg batter. The chile is then covered in our special ranchera potato sauce. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Mexican Bacon Shrimp Fajitas
Shrimp grilled with bacon, pasilla chile, and onion. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Shrimp Diablo
Shrimp sauteed with onion simmered in a spicy chipotle sauce. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Pescado a la Plancha
Grilled fish filet served with sliced avocado and a side of onion, tomato, and cilantro. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Fajitas
Grilled onions and bell peppers with a choice of carne asada, grilled chicken, or grilled shrimp. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Mexican Fajitas
Grilled onions, pasilla chiles, tomato, and bacon. Choice of carne asada, grilled chicken, or grilled shrimp. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Steak or Chicken Picado
Choice of steak or chicken with onion and bell pepper simmered in a tomato sauce with spices. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Pollo con Queso
Grilled chicken with bacon and onions topped with melted cheese. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Chile Verde
Pork in mild green chile sauce. Served with soup or salad, rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Breakfast
Chilaquiles
Tortilla chips sauteed in mild red chile sauce topped with eggs prepared to choice and fresh cheese. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Ham and Eggs
Eggs scrambled with ham. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Huevos Rancheros
Sunny side-up eggs on a corn tortilla covered in a green pork sauce or ranchera potato sauce. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Mexican Eggs
Eggs scrambled with grilled onions and bell peppers. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Papas con Huevo
Grilled potatoes, onion, bell peppers, and bacon topped with sunny-side-up eggs and cheese. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Chorizo and Eggs
Eggs scrambled with chorizo. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Machaca
Shredded beef scrambled with eggs, grilled onions, and bell peppers. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Ranchero Omelet
Omelet filled with cheese and covered in ranchero potato sauce and melted cheese. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Green Pork Omelet
Omelet filled with green pork sauce topped with more sauce and melted cheese. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Grilled Vegetable Omelet
Omelet filled with seasoned grilled vegetables topped with melted cheese. Served with rice, beans, and a choice of homemade corn tortillas or flour tortillas.
Drinks
Aguas Frescas
Choose your drink
Fountain Drinks
Choose your drink
Soda Bottle
Choose your drink
Soda Cans
Choose your drink
Coca Cola Mexican Bottle
Photos
+19 photos
+18 photos
Add a photo
Recent Reviews
Absolutely amazing, I cannot say good enough things about this place, the people, the service, the food. It’s all amazing! I got the Carne burrito with green sauce and it was absolutely delicious!
February 2026
First time here, and the food and service were amazing. It's hard to find good chile rellenos, or great carnitas. This place has them both. The people here make you feel at home. Definitely coming back
September 2025
Only Mexican restaurant I would recommend in Fontana. When I lived in a suicide this place was right around the corner, we ate there all the time. It is delicious food, to my surprise they moved here after 20 something years. What a happy accident I love this place, service is great, food is on hit and you should try their enchiladas they have the sauce honestly I don't know how to explain it it's just really good!!! EKLNJOY!!
July 2025
You May Also Like
Phu Chen Kitchen - 17218 Foothill Blvd
![]()
Chinese, Vegetarian
Prak Kitchen Chinese Food - 17171 Foothill Blvd suite D
![]()
Chinese, Fast Food, Asian Fusion
Taco Bell - 17111 Foothill Blvd
![]()
Fast Food, Mexican