Macaroni, Tomato, and Cheese Casserole

2 c. macaroni

chopped onion

16 oz. can tomato sauce

1 1/2 t. salt

1 1/2 c. shredded cheddar cheese

1/2 c. butter

28 oz. can diced tomatoes

1 1/2 t. Worcestershire sauce

1/4 t. pepper

Boil macaroni in water 10 minutes. Rinse and drain. Melt butter in skillet. Add onion and saute until tender. Add all remaining ingredients, except cheese. Simmer 5 minutes. Add macaroni. Stir. Place in buttered casserole, alternating layers with cheese. Top with cheese. Bake at 375 for 45 minutes.