Callaloo, Jamaica, Can 19 OZ Jamaican spinach. Quality assured since 1986. Callaloo is a highly nutritious green leafy vegetable similar to spinach. Linstead Market Jamaica Callaloo is delicious in soups, quiches or salads, or simply steamed with fresh seasonings and saltfish (codfish) for a healthy side dish. Let Linstead Market Jamaica Callaloo, be the main ingredient in your pepper pot soup, a traditional Caribbean dish.