Brown 1 pound ground beef
1/4 c. chopped onions
1/4 c. green peppers
small can of chopped olives
(3) 8oz cans of tomato sauce
(1) 8 oz can of el pato (mexican tomato sauce)
Mix all above ingredients in a bowl.
Take corn tortillas, cover bottom of dish. spread the above mixture, and top with a little cheese. Keep layering it like this until your oven-safe dish is full. Cover with foil, and cook for 30 min @ 350 degrees.
Top with sour cream if you like it.
For a hotter version, replace one can of tomato sauce with another can of mexican tomato sauce.
Cheap, quick, easy, and good!