Tacos are my favorite food. I love how they come with a corn or wheat or flour tortilla and are rolled around a filling.
Oh, I love tacos. When did they come into existance?
The origins of the taco are unknown.
What else can you tell me about tacos?
It is eaten without utensils and accompanied by things such as salsa, avocado, guacamole, and lettuce.
Is cheddar cheese a common filling as well? 
Not authentically.
What types of meat are typical for fillings?
Taco
A taco (, , ) is a traditional Mexican dish consisting of a corn or wheat tortilla folded or rolled around a filling. A taco can be made with a variety of fillings, including beef, pork, chicken, seafood, vegetables, and cheese, allowing great versatility and variety. Tacos are generally eaten without utensils, often garnished with salsa, chili pepper, avocado, guacamole, cilantro (coriander), tomatoes, onions, and lettuce.
Etymology.
The origins of the taco are not
simply is a folded tortilla with some kind of filling. Mexican street taco fillings vary from one region to another. Most tacos are made with corn tortillas, except in the very north of the country where wheat flour tortillas dominate. The tortillas used in Mexican tacos are soft, although the entire taco can be fried, which is called “dorado” (lit. golden). The taco has its origins in the pre Hispanic period, when other foods were eaten with tortillas, used as a scoop. The modern taco