Creating this incredible ravioli lasagna is straightforward when you follow these simple steps:

1. Preheat the Oven: Set your oven to 375°F (190°C).
2. Prepare Baking Dish: Grease a 9×13 inch baking dish with cooking spray or olive oil.
3. Spread Marinara Sauce: Pour a thin layer of marinara sauce on the bottom of the baking dish.
4. First Layer of Ravioli: Arrange half of the ravioli in a single layer over the sauce.
5. Add Cheese Mixture: In a bowl, combine ricotta cheese, half of the mozzarella, Italian herbs, salt, and pepper. Spread half of this cheese mixture over the ravioli layer.
6. Repeat Layers: Pour more marinara sauce over the cheese mixture, then repeat the layering process with the remaining ravioli and cheese mixture.
7. Top with Sauce and Cheese: Pour the remaining marinara sauce over the last layer of ravioli and top with the remaining mozzarella and grated Parmesan cheese.
8. Cover and Bake: Cover the dish with aluminum foil and bake for 30 minutes.
9. Uncover and Brown: Remove the foil and bake for an additional 10-15 minutes, or until the cheese is bubbly and golden.
10. Cool Before Serving: Once baked, let the lasagna sit for 10-15 minutes before slicing to allow it to set.

These steps will lead you to a beautiful and delicious ravioli lasagna that will delight your guests!