Although I am by no means on expert on Mexican food, I have been to my
fair share of Mexican restaurant and think I can answer your question.
A burrito is a beans, beef, or chicken with cheese wrapped in a
tortilla. It usually also has lettuce, salsa, tomatoes and sour cream
A quesadilla is melted cheese wrapped in a tortilla with sauce on top.
A fajita usually comes to your table on a metal tray with hot (as in
temperature, not spicy) vegetables that have been sauteed. Usually the
vegetables include onions, squash, and green peppers. I have also seen
cauliflower and broccoli. They are sauteed with some special fajita
spicy sauce stuff. You also get a stack of tortillas and a plate with
lettuce, salsa, sour cream and guacamole. You put it together yourself.
I think I know what chimichanga are, but I may have to be corrected by
someone on this list. I think they are little tortillas with beans or
cheese wrapped inside tightly. Then are then deep-fried. These are
Tacos are tortilla shells that have been folded into a U-shape and fried
until very crispy like chips. They are filled with beans, meats,
cheese, lettuce, salsa, or whatever. They are basically a cruncy
You can make many of these items fatfree by cutting out the cheese, sour
cream, and guacamole.