Cook manicotti al dente; drain, and rinse with cold water.
Mix ricotta, 1 cup mozzarella, Parmesan, egg, parsley, garlic powder, basil, salt, and pepper. Taste and adjust the seasoning.
Spread 1 cup sauce in a white ceramic baking dish. Pipe filling into tubes; place in a dish.
Top with 2 cups sauce and 1/2 cup mozzarella. Bake at 375°F, covered, for 25 minutes; uncover, and bake 5–10 minutes.
Serve in a dish with basil, parsley, garlic bread, and wine.