Boil in salted water until just tender, then drain and set aside.
Heat olive oil in a skillet and cook the ground beef until browned and crumbly. Drain excess grease.
Stir in the tomato sauce, garlic powder, onion powder, salt, and black pepper. Let it simmer gently.
In a bowl, gently mix the sour cream and cottage cheese.
Spread half of the egg noodles into the baking dish, followed by half of the creamy mixture and half of the beef sauce. Repeat the layers, then sprinkle cheddar cheese on top.
Bake at 350°F (175°C) for 35 to 40 minutes until hot and bubbly.
Let the casserole rest for 10 minutes before serving. Sprinkle with parsley if desired.