Baked Spaghetti

Ingredients:
8 oz (dry) spaghetti, cooked and drained
1 lb hamburger or bulk mild Italian sausage
1 large onion, chopped
1 green bell pepper, chopped
1 zucchini, coarsely chopped (optional)
2 stalks celery, coarsely chopped
1 14.5 can stewed tomatoes, do not drain
16 oz ketchup
3 T brown sugar (optional)
1 cup mozzarella cheese, shredded

Directions:
Brown hamburger with onion, bell pepper, zucchini and celery. Salt and pepper to taste. Add stewed tomatoes (I chop mine up before adding), ketchup, spaghetti and sugar, combine well. Pour into 13x9 inch baking pan. Top with mozzarella cheese. Bake at 400 degrees for 30 minutes.