1 1/2 lb. ground beef
1 pkg. taco seasoning
1 can cream of mushroom soup
1 can Rotel tomatoes
1/2 c. chopped onion
1 bag Doritos
1 pkg. grated cheddar cheese

Brown onions. Add ground beef and brown. Add taco seasoning, mushroom soup and tomatoes. Layer chips in a casserole dish. Pour meat mixture over chips. Top with cheese.

Bake at 350°F until hot and cheese is melted.