1Cut pork across grain into thin slices; cut slices into strips, each about 2 1/2x1/2 inch.
2Heat 1 tablespoon butter in 10-inch skillet over medium heat until bubbly. Cook mushrooms, onions and garlic in butter, stirring occasionally, until mushrooms and onions are tender. Remove mixture from skillet.
3Heat 1 tablespoon butter in skillet over medium-high heat until melted. Cook pork in butter, stirring frequently, until brown. Stir in broth, basil, Worcestershire sauce and pepper. Heat to boiling; reduce heat. Cover and simmer about 10 minutes, stirring occasionally, until pork is tender. Stir in mushroom mixture.
4Mix sour cream and flour; stir into pork mixture. Heat to boiling, stirring constantly. Boil and stir 1 minute. Stir in tomatoes; heat through. Serve over noodles.