1 24-26 oz jar marinara sauce
2 20 ounce packages refrigerated large cheese ravioli
1 20 ounce box frozen, chopped, thawed and squeezed spinach or fresh
2 cups shredded mozzarella (8oz)
1/2 cup grated parmesan
Heat oven to 375*F. Spoon a thin layer of sauce into the bottom of a 9x13 baking dish.
On top of the sauce, layer a third of the ravioli, half the spinach, half the mozzarella, and a third of the sauce; repeat.
Top with remaining third of the ravioli and sauce.
Sprinkle with the parmesan.
Cover with foil and bake for 30 minutes.
Uncover and bake until bubbling, 5-10 minutes.
So I just did this in a 8x8 dish and I halved the amount of ravioli used to fit the smaller dish. That amounts to a dish with 2820 calories in total - I did all the math myself!