Cut beef into small strips, discarding all fat

Cook beef in fry pan, add onion when beef is nearly done

Boil noodles in water until tender, then drain

Combine soup, water, and flour in saucepan over medium heat, stirring frequently

After sauce thickens, add to beef pan with paprika and sour cream, simmer until well mixed

Serve meat and sauce over noodles or cooked rice