Preheat oven to 375°F and grease a 9x13" baking dish.
Cook the rigatoni in salted water until just al dente. Drain and set aside.
Brown the ground turkey in a skillet with 1 tablespoon olive oil. Season with salt, pepper, and a pinch of Italian seasoning. Cook until no longer pink. Let cool slightly.
In a large bowl, mix together: Cottage cheese, 1½ cups mozzarella, Parmesan, Egg, Italian seasoning, Garlic powder, salt & pepper. Stir in cooked ground turkey
Combine the cooked rigatoni with the cheese and meat mixture. Stir in half of the Rao’s sauce to coat everything.
Pour into baking dish. Top with remaining Rao’s sauce and a handful of mozzarella.
Cover with foil and bake for 25 minutes. Uncover and bake another 10–15 minutes until bubbly and golden on top.