PREHEAT oven to 350 degrees.
In a large stock pot, COOK noodles according to package directions and DRAIN.
In a large skillet, BROWN beef in oil. DRAIN the grease.
ADD salt, pepper, garlic powder, and tomato sauce to the pan. STIR and SIMMER for 5 minutes.
In a large bowl, COMBINE the cottage cheese, sour cream (or Greek yogurt), green onions, and cooked noodles.
GREASE a 2-quart dish or 8 x 11 baking dish.
Alternate noddle mixture with meat mixture, beginning with the noodle mixture and ending with a layer of meat.
Top last layer with shredded cheese. ( I use a sharp cheddar)
Bake for 20 to 25 minutes, until cheese is melted and has browned.