In a crock pot, combine browned beef, sweet potatoes, garlic, cinnamon stick, onion, tomatoes, bay leaf, and allspice. Cook on low for 8 hours until beef is tender.
3 cups sweet potatoes, 2 garlic cloves, ⅛ teaspoon allspice, 1 cinnamon stick, 1 large onion, 28 oz tomatoes, 1 bay leaf