Taco Bell is a fast food chain that is known for its crunchy tacos, which are made with a crispy corn tortilla shell and filled with seasoned beef, lettuce, tomatoes, and cheese.

Taco Bell's signature taco sauce is called Fire Sauce. It is a spicy sauce that is made with a blend of chili peppers, vinegar, and spices.

Taco John's is a fast food chain that is known for its soft tacos, which are made with a soft flour tortilla shell and filled with seasoned beef, lettuce, tomatoes, and cheese.

Taco John's signature taco sauce is called Green Sauce. It is a mild sauce that is made with a blend of green chili peppers, vinegar, and spices.

Del Taco is a fast food chain that is known for its street tacos, which are made with a soft corn tortilla shell and filled with seasoned beef, onions, cilantro, and salsa.

Del Taco's signature taco sauce is called Red Sauce. It is a spicy sauce that is made with a blend of chili peppers, vinegar, and spices.

Rubio's Coastal Grill is a fast food chain that is known for its fish tacos, which are made with a grilled fish fillet, cabbage, pico de gallo, and a creamy sauce.

Rubio's Coastal Grill's signature taco sauce is called Baja Sauce. It is a creamy sauce that is made with a blend of mayonnaise, sour cream, chili peppers, and spices.

Taco Cabana is a fast food chain that is known for its shrimp tacos, which are made with a grilled shrimp, cabbage, pico de gallo, and a creamy sauce.

Taco Cabana's signature taco sauce is called Salsa Roja. It is a spicy sauce that is made with a blend of chili peppers, vinegar, and spices.

Whataburger is a fast food chain that is known for its breakfast tacos, which are made with a soft flour tortilla shell and filled with eggs, bacon, sausage, cheese, and salsa.

Whataburger's signature taco sauce is called Spicy Ketchup. It is a spicy sauce that is made with a blend of ketchup, chili peppers, and spices.

El Pollo Loco is a fast food chain that is known for its al pastor tacos, which are made with a grilled pork shoulder, pineapple, onions, cilantro, and salsa.

El Pollo Loco's signature taco sauce is called Salsa Roja. It is a spicy sauce that is made with a blend of chili peppers, vinegar, and spices.

Birria-Landia is a fast food chain that is known for its birria tacos, which are made with a braised beef or goat meat, onions, cilantro, and salsa.

Birria-Landia's signature taco sauce is called Salsa Roja. It is a spicy sauce that is made with a blend of chili peppers, vinegar, and spices.