1 lb. hamburger
1 lg. onion, chopped
1/2 tsp. salt
1 (8 oz.) (2 c.) uncooked elbow macaroni
1 (15 1/2 oz.) spaghetti sauce
1 can tomato soup
3 1/2 oz. pkg. pepperoni slices
1 (8-10 oz.) pkg. Mozzarella cheese, sliced
Dash of pepper

Brown hamburger with onion. Drain off fat. Season with salt and pepper. Cook macaroni 10-12 minutes. Drain. Mix meat, noodles, sauce and soup. Place in 1 large or 2 medium casseroles alternating layers with pepperoni and cheese. Top with cheese. Bake at 350 degrees 30 to 40 minutes.