Shop › Guinness Stew Image 1 of 2 Image 2 of 2 Guinness Stew $18.00 AAA beef, carrots, potatoes, peas, onions, Guinness gravy. Best served with creamy mash. Serves 2. Simply heat and enjoy. Add to cart Added! AAA beef, carrots, potatoes, peas, onions, Guinness gravy. Best served with creamy mash. Serves 2. Simply heat and enjoy.