Ravioli Lasagna

1 1/4 cup Marinara Sauce
1- 20 oz package Refrigerated Cheese Ravioli
1- 10 oz box Frozen Chopped Spinach (thawed and squeezed dry)
8 oz Shredded Part Skim Mozzarella Cheese
1/4 cup Grated Parmesean

Preheat oven to 375 degrees. Apply light coating of non stick cooking spray to an 8-inch square baking dish. Spoon 1/4 cup marinara sauce over bottom of dish. Cover with half of ravioli. Spread half of the remaining sauce over ravioli. Sprinkle on spinach and half of mozzarella. Repeat with remaining ravioli, marinara and mozzarella. Sprinkle top with parmesean. Cover dish with foil and bake for 30 minutes. Remove foil and bake until bubbling, about 10 minutes longer. Let cool for about 5 minutes before slicing.