1 lb. hamburger
1 onion
1 box seashells (pasta)
15 oz. can tomato sauce
1/4 c. water
1 tbsp. oregano
15 oz. can pizza sauce
8 oz. mozzarella cheese (shredded)
Pepperoni

Brown hamburger and onion together and drain. Cook seashells; drain. Mix first 6 ingredients together. Grease a 9 x 12 inch glass baking dish. Pour in mixture.

Cover with pizza sauce, layer pepperoni, cover with shredded cheese. Cover with tin foil and bake at 400 degrees for 20 minutes. Uncover and bake another 10-15 minutes.