1 lb. lean ground beef
1 (1 lb.) jar spaghetti sauce
1 (8 oz.) pkg. sea shell macaroni, cooked & drained
1 (8 oz.) container dairy sour cream
1/2 lb. cheddar cheese, grated

In skillet, brown beef, drain; add spaghetti sauce and simmer about 8 minutes. Using half the ingredients, arrange in layers in casserole in this order: macaroni, beef mixture, sour cream and cheese. Repeat layers using remaining half of ingredients. Bake at 350 degrees about 15 minutes until cheese on top melts. Serves 4 to 6.