PREHEAT oven to 350°F degrees.
SPREAD 1 cup marinara sauce in bottom of 9×13 baking dish. Sprinkle sauce with 1/2 tsp Italian seasoning and 1/2 tsp garlic powder. Top sauce with layer of uncooked ravioli and ½ shredded cheese. Repeat layers. Finish top layer with mozzarella, pepperoni and a drizzle of olive oil.
COVER with foil and bake for 30-35 minutes.
REMOVE foil and bake until cheese is melted and bubbly. Let cool for 5 minutes before serving.
