Beef Stroganoff
["2 1/2 lb. sirloin steak, cut 1-inch thick", "1 lb. fresh mushrooms", "8 oz. sour cream", "4 to 6 Tbsp. butter", "2 medium onions, sliced", "Worcestershire sauce"]
["Saute", "meat", "in butter for about 1 minute on each side; set aside.", "Saute onions and mushrooms in butter until golden brown, then", "return meat to pan.", "Add sour cream and a couple dashes of Worcestershire sauce.", "Add salt and pepper to taste. Warm thoroughly;", "do", "not", "boil.", "Serve over noodles or thick fried potatoes."]
["sirloin steak", "fresh mushrooms", "sour cream", "butter", "onions", "Worcestershire sauce"]