Lamb blends with fragrant spices in this Moroccan dish. Tagines are usually served at home and are cooked in a glazed earthenware tagine, a covered dish with a conical lid. It’s used for slow cooking the ingredients. Steam gathers in the top of the conical lid and falls on the food, keeping it moist without basting. However, any type of skillet or casserole can be used for this dinner.