Brown hamburger, adding 1 cup chopped onion, and 1 cup chopped green pepper as the meat browns. Add 1 large can chili beans (without meat), 1 large can stewed tomatoes and season to taste with salt, pepper, garlic, cumin, and extra hot chili powder, if desired. Layer meat and bean mixture in casserole with 1 package of corn tortillas. Top with grated cheese. Bake in 350* oven for 20-30 minutes. Variations: Add canned or left over corn, chopped olives to make it a mock tamale pie.