1 pkg. Doritos
1 onion
2 lb. hamburger
1 can cream of mushroom soup
1 can cream of chicken soup
1 can Rotel tomatoes
1 can whole kernel corn or Mexi corn
Grated cheese

Layer Doritos in bottom of 9 x 11 inch dish. Brown together chopped onion and hamburger. Drain. Mix soups, tomatoes and corn together. Heat on top of stove to speed up preparation time. Place meat on top of Doritos layer. Pour soup mixture on top of meat. Bake until casserole bubbles through. Top with grated cheese. Melt cheese. Serve with salad.