1 boneless beef sirloin steak
cracked black pepper
1 tablespoon vegetable oil
1 medium onion, finely chopped
1 (10.75 ounce) can Campbell's?(r) Condensed Cream of Mushroom Soup (Regular or 98% Fat Free)
1/2 cup water
1/4 cup dry sherry
1 tablespoon tomato paste
1/4 cup plain yogurt
Hot cooked medium egg noodles
Chopped fresh parsley