1 lb. hamburger
1 onion - chopped
2 -16 oz. pizza sauce
1 -10 oz. pkg. Mozzarella cheese
1 - 7 oz. pkg. macaroni (cooked)
4 oz. pepperoni, thinly sliced
salt and pepper to taste

Brown hamburger with salt, pepper and chopped onion. Add pizza sauce, macaroni. Top with pepperoni and cheese. After putting in large casserole dish, bake at 350°F for 45 minutes. You may add one can mushrooms to topping if you desire.