Brown your ground beef - you can use any meat you like or if you prefer, you could also use black beans in the place of meat. I also prefer to cook my meat in the slow cooker.
Add taco seasoning to meat or beans.
Place 3 corn tortillas, torn into small pieces, in the bottom of a greased 8" round pan.
Add 1/2 ground beef mixture over tortillas
Add 1/2 can of diced tomatoes and peppers over beef
Add 1/2 can of Nacho cheese over beef/tomato mixture
Spread cheese out as much as possible over dish
Add 3 remaining corn tortilla, torn into small pieces, over mixture
Repeat beef/tomato/cheese layering
Bake for 15-20 minutes in 350 degree oven
Remove from oven, add shredded cheese to top of dish
Bake until cheese is melted