Preheat oven to 375°F (190°C). Lightly grease a 9x13 inch baking dish.
Cook tortellini according to package directions, but do not overcook. Drain well.
In a large bowl, combine the cooked tortellini, marinara sauce, ricotta cheese, Parmesan cheese, egg, dried parsley, and garlic powder. Stir until well combined.
1 package Refrigerated Cheese Tortellini
Pour the tortellini mixture into the prepared baking dish and spread evenly.
Top with shredded mozzarella cheese.
1 package Refrigerated Cheese Tortellini
Bake for 25-30 minutes, or until bubbly and the cheese is melted and golden brown.
Let stand for 5-10 minutes before serving.
Notes
Serve hot with a side salad and garlic bread for a complete meal.