Step 1

Stir together the tomatoes, wine, soups, tomato sauce, garlic, Worcestershire sauce, mustard and pepper in the bottom of 6- or 7-quart slow cooker. Cut the beef tenderloin in half and add to slow cooker, making sure to cover it with the sauce mixture.

Step 2

Cover and cook on low for six to eight hours, or until the meat is tender. If desired, garnish the beef with fresh parsley.