Creating Million Dollar Ravioli Casserole is a breeze when you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Baking Dish: Grease a 9×13-inch baking dish lightly with cooking spray.
3. Layer the Marinara: Spread 1 cup of marinara sauce across the bottom of the baking dish.
4. Arrange the Ravioli: Evenly distribute half of the frozen cheese ravioli over the sauce.
5. Mix the Cheese Filling: In a bowl, combine ricotta cheese, Italian seasoning, garlic powder, salt, and pepper. Mix until smooth.
6. Add Cheese Mixture: Spoon the ricotta mixture over the ravioli, spreading it evenly.
7. Top with More Sauce: Pour another cup of marinara sauce over the ricotta layer and spread it evenly.
8. Add Remaining Ravioli: Layer the remaining ravioli over the top and cover them with the final cup of marinara sauce.
9. Finish with Cheese: Sprinkle the shredded mozzarella and grated Parmesan evenly over the casserole.
10. Cover with Foil: Cover the baking dish tightly with aluminum foil and bake for 30 minutes.
11. Uncover and Brown: After 30 minutes, remove the foil and bake for an additional 10 minutes, allowing the cheese to become bubbly and golden.
12. Cool and Serve: Let the casserole cool for about 5-10 minutes before serving. Garnish with fresh basil or parsley if desired.

This streamlined process ensures that the delicious layers of flavor are achieved without the stress often found in elaborate recipes.