Break up ground meat into a large skillet, and add onion, mushrooms, garlic powder, and mustard powder.Cook and stir over medium heat until the meat is browned and onion is tender.Drain off excess fat.

Advertisement

In a small bowl, combine sour cream, mayonnaise, and beef broth.Stir into beef mixture, and cook over low heat for 10 to 15 minutes.Do not stir too much.

Meanwhile, cook pasta in a large pot of boiling water until done. Drain. Serve sauce over hot noodles.