Cook the frozen ravioli according to package instructions until al dente. Drain and set aside.

In a skillet, heat the marinara sauce over medium heat. Stir in the oregano, basil, garlic powder, salt, and pepper.

In a baking dish, spread a layer of the sauce on the bottom. Layer half of the cooked ravioli, followed by half of the ricotta, half of the mozzarella, and half of the Parmesan. Repeat the layers.

Preheat the oven to 375°F (190°C). Cover the baking dish with foil and bake for 20 minutes. Remove the foil and bake for an additional 10 minutes until the cheese is bubbly and golden.

Let the dish cool for a few minutes before serving. Garnish with additional Parmesan if desired.