Cut beef, melt margarine over med. high heat. cook mushrooms, onion and garlic in margarin, stirring occasionally until onion is tender.
cook beef in skillet, stir in wine Worcestershire sauce and salt. heat to boiling; reduce heat to low. cover and simmer.
stir broth into flour; stir into beef ixture. stir in mushroom mixture. heat to boiling stir in sour cream cook until hot serve over pasta/