Spread 3/4 cup of pasta sauce in a 13 x 9 inch baking pan (coated in cooking spray).
Arrange 1/2 a package of frozen cheese-filled ravioli in a single layer over the sauce.
Top with 3/4 cup of pasta sauce and 1 cup of shredded mozzarella cheese.
Repeat layers once, starting with the ravioli.
Sprinkle with Parmesan Cheese.
If you want this meaty, add your favorite meat in the layers such as pepperoni or hamburger, etc..
Cover with foil and bake 40 minutes. Remove foil & bake 20 minutes longer.
Let stand 10 minutes before cutting.