1 lb. ground beef
1 (15 oz.) can tomato sauce
1 env. taco seasoning mix
2 1/2 c. corn/tostada chips
1 (15 oz.) can refried beans (optional)
2 oz. (1/2 c.) shredded Cheddar cheese
Shredded lettuce, optional
Chopped tomatoes, optional

Brown ground beef. Add 1 1/2 cups tomato sauce and taco seasoning mix. Line bottom of 13 x 9 x 2 inch baking dish with 2 cups of the chips. Crush remaining chips and set aside.

Spoon meat and sauce mixture over the corn chips. Combine rest of sauce and beans and spread over meat. Bake at 350 degrees until mix is heated through (about 25-35 minutes). Sprinkle Cheddar cheese and crushed chips over casserole and bake until cheese is melted (approximately 5 minutes).

Top whole casserole with lettuce and tomatoes for an extra special look. Sour cream could be served on side to spoon on top.