2 lb. sirloin steak, cut into thin strips
2 c. sliced fresh mushrooms
2 med. onions, sliced
2 tbsp. oil
2 cubes beef bouillon
1/2 c. hot water
1/2 c. dry red wine
1/2 tsp. salt
2 tbsp. catsup
1 tbsp. dry mustard
2 tbsp. flour
1/2 c. water
1/2 to 1 c. sour cream

In large fry pan, cook steak, mushrooms and onions in hot oil until golden brown. Add bouillon, water, wine, salt, catsup and mustard. Cover; simmer about 30 minutes or until tender. Combine flour and water. Stir into meat mixture. Cook, stirring constantly, until mixture comes to a boil. Reduce heat; stir in sour cream. Heat, but do not boil. Serve over noodles or rice.