Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with olive oil or nonstick spray.
Spread 1 cup of marinara sauce on the bottom of the dish. Arrange half of the ravioli in a single layer over the sauce. Top with 1 cup of sauce and 1 cup of mozzarella cheese. Repeat with Sprinkle grated parmesan and Italian seasoning over the top.
the remaining ravioli, sauce, and mozzarella.
Cover with foil and bake for 25 minutes. Then remove foil and bake for an additional 5–10 minutes until the cheese is melted and slightly golden.
Let it sit for 5 minutes before serving. Garnish with fresh basil or parsley if desired.