Creating the 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: Lightly grease a 9×13 inch baking dish with olive oil.
3. Mix the Cheese Filling: In a bowl, combine the ricotta cheese, 1 cup of mozzarella cheese, Italian seasoning, garlic powder, salt, and pepper. Mix until well blended.
4. Layer the Ravioli: Spread a thin layer of marinara sauce on the bottom of the prepared baking dish. Place half of the frozen ravioli on top.
5. Add Cheese Mixture: Spoon half of the ricotta cheese mixture over the ravioli, spreading it evenly.
6. Repeat Layers: Add another layer of marinara sauce, followed by the remaining ravioli, and top with the rest of the ricotta cheese mixture.
7. Finish with Sauce and Cheese: Pour the remaining marinara sauce over the top layer and sprinkle with the remaining mozzarella and Parmesan cheese.
8. Cover and Bake: Cover the baking dish with aluminum foil and bake for 25 minutes.
9. Uncover and Brown: Remove the foil and bake for an additional 10-15 minutes, or until the cheese is bubbly and golden brown.
10. Cool and Garnish: Once baked, remove from the oven and let it cool for a few minutes. Garnish with fresh basil leaves before serving.

These straightforward instructions will guide you in crafting a delicious Million Dollar Ravioli Casserole that will wow your family and friends.