Non-stick spray coating or shortening
1 (10 oz.) pkg. refrigerated pizza dough
1 c. shredded cheddar cheese
1 c. shredded mozzarella cheese
1/2 c. ricotta cheese
1/4 c. grated Parmesan cheese
1 c. thick-style spaghetti sauce OR 1 (8 oz.) can pizza sauce

Spread dough on 12 inch pizza pan. Mix together cheeses. Spread cheeses on half of dough. Fold over. Seal edges together. Bake at 375 degrees for 10 minutes. Cover with foil and bake another 10 minutes. Serve with hot spaghetti or pizza sauce.