Turn crock pot onto LOW setting. Add consommé, french onion soup, Guinness, and garlic powder; stir to combine. Add bottom round. Turn beef around in liquid to coat each side.
Cover, and cook for 8 hours, until beef is tender.
Remove beef from crock pot and reserve liquid. Thin slice beef.
Cut rolls in half - if desired, lightly toast cut side of rolls. Top rolls with a heaping helping of sliced beef and provolone cheese. Serve with a side of reserved liquid and your favorite chips or fries.
Recipe Notes
Campbell's brand makes both the French Onion and Beef Consommé soups. I didn't see the consommé anywhere else at my store.