Arrange beef, sweet potatoes and celery in slow cooker. Combine remaining ingredients and pour over beef.
Cook covered on LOW 8 to 10 hours or HIGH 4 to 6 hours or until beef is tender. Thicken gravy, if desired.
TIP: To make on stovetop, brown beef in Dutch oven or 6-quart saucepot. Stir in water, Lipton® Recipe Secrets® Onion Soup Mix, celery and ginger. Bring to a boil over high heat. Reduce heat to low ansd simmer covered, stirring occasionally, 2 hours. Stir in potaoes and cook until beef and potaoes are tender, about 30 minutes.