Steak Diane
["1/4 cup butter or margarine", "1/2 cup thinly sliced fresh mushrooms", "2 Tbsp. finely chopped onion", "1/8 tsp. garlic powder", "1/8 tsp. salt", "1 tsp. lemon juice", "1 tsp. Worcestershire sauce", "2 Tbsp. parsley", "2 Tbsp. butter or margarine", "1 lb. beef tenderloin, cut into 8 slices"]
["Melt butter in small saucepan.", "Add mushrooms, onion, garlic powder, salt, lemon juice and Worcestershire sauce.", "Cook and stir until mushrooms are tender.", "Add parsley;", "keep sauce warm."]
["butter", "mushrooms", "onion", "garlic powder", "salt", "lemon juice", "Worcestershire sauce", "parsley", "butter", "beef tenderloin"]