Preheat oven to 400 degrees. Grease a 9 x 13 baking dish.
Spread a thin layer of sauce on the bottom of the baking dish.
Place the ravioli in a single layer on the sauce. Spread 1/2 of the remaining sauce over the ravioli. Sprinkle with 1/2 mozzarella cheese and parmesan cheese.
Place a another layer of ravioli on top of the cheese and spread reaming sauce over the top of the ravioli. Sprinkle with remaining cheeses.
Cover with aluminum foil and place into the preheated oven for 20 minutes. After 20 minutes, remove foil and bake another 20 minutes or until bubbling and hot in the middle. Enjoy!