preheat oven to 350. cook ravioli according to bag instructions using shortest cooking time. drain

spray lasagna tin lightly with cooking spray, spread 1 cup pasta sauce evenly on bottom.

add ravioli to tin, cover with remaining pasta sauce. toss lightly to coat.

sprinkle 1 cup mozzarella cheese and as much parmesan as you like, then mix lightly to incorporate.

add remaining mozzarella to top and sprinkle on more parmesan if you like

bake about 20 minutes until cheese is bubbly and slightly golden brown

mangia!