2 lbs. ground beef
2 c. shell macaroni, cooked
1 can mushroom soup
2 c. canned tomatoes
2 c. Velveeta cheese
1 med. onion, chopped

Cook ground beef and onion until done. Add soup and simmer 10 minutes. Add tomatoes and simmer 20 minutes. Add cheese, saving 1/2 cup to be sprinkled on top of casserole. Mix macaroni and meat mixture together. Top with extra cheese. Bake at 350 degrees for 15 to 20 minutes. Freezes well.