1 lb. ground beef
1 pkg. taco seasoning mix
1/4 c. onion
2 c. chopped lettuce
1 diced tomato
5 or 6 broken taco shells
1 c. cheddar cheese
3 tbsp. taco sauce

Brown meat in skillet, drain grease, season with taco mix. In casserole, cover bottom of dish with 1/2 taco shells, then layer 1/2 meat, onion, lettuce, tomato and cheese. Repeat layering. Sprinkle taco sauce on top and bake 350 degrees for 30 minutes.