What IS a taco?
At places like Taco Bell, a taco is ground meat slopped into a U-shaped, deep fried tortilla. That is an abomination. THIS is the kind of taco I like:
THIS is the kind of meat that should go on it (it is NOT ground):
The tortillas are corn but unfried. Two of them are layed flat and the meat (such as carnitas, my favorite, but also possibly chili verde, chicken or whatever), salsa, a few jalapenos if desired and some cilatro are ladeled onto them. You pick the thing up and fold it into the U-shape in your hand to eat.
If you go into almost any non-chain taqueria in San Francisco and order a taco, this is what you get and they are both cheap and good.