1 lb. hamburger
1 med. onion
8 oz. egg noodles, cooked
1 (32 oz.) jar spaghetti sauce
1 can Cheddar cheese soup
8 oz. shredded Mozzarella cheese

Brown hamburger and onion. Mix together cooked noodles, hamburger, spaghetti sauce and Cheddar cheese soup. Put in a 9x13 inch glass pan and sprinkle with the shredded Mozzarella cheese. Bake at 350 degrees for 45 minutes.