Set oven to 350° and spray a 9x13 pan with cooking spray

Boil egg noodles according to package directions.

Cook and drain beef, add tomato sauce, salt, pepper, and onion powder stir and let simmer while noodles cook.

In a bowl mix together sour cream and cottage cheese. Add noodles and stir until noodles are coated.

Layer noodles, sauce, and shredded cheese in baking dish and bake for 20 min.