1 lg. bag Doritos
1 (16 oz.) can Ranch style beans
1 (10 oz.) can Rotel tomatoes
1 can cream of mushroom soup
1 lb. ground beef
1 med. onion
1 c. grated cheese

Spray 9"X13" pan with Pam. Lay chips in pan. Brown meat and diced onions, put over chips. Spread beans over meat mixture. Mix tomatoes and soup, spoon over beans. Sprinkle cheese on top and bake at 350 degrees for 20 to 30 minutes.