Baked ravioli casserole layers frozen ravioli with meat sauce and mozzarella for a quick, protein-rich family dinner. With just three main ingredients, this cheesy, satisfying bake is a weeknight miracle.
Preheat your oven to 375°F (190°C) and grease a 9x13-inch baking dish with olive oil.
In a skillet over medium-high heat, cook the ground beef until browned, breaking it up as it cooks. Season with salt, pepper, and Italian seasoning.
Add marinara sauce to the cooked beef, then simmer for 5 minutes to meld flavors. Stir occasionally and remove from heat.
Layer half of the frozen ravioli evenly in the prepared dish. Top with half of the meat sauce and sprinkle with half of the mozzarella cheese.
Repeat with the remaining ravioli, meat sauce, and mozzarella. Cover the dish with foil and bake for 25 minutes. Then remove foil and bake an additional 10 minutes until the cheese is golden and bubbling.