Butter a deep dish or mould, and line it with potatoes mashed with milk or batter, and seasoned with pepper and salt. Fill it with slices of the lean of cold mutton, or lamb, seasoned also. Cover the whole with more mashed potatoes. Put it into an oven, and bake it till the meat is thoroughly warmed, and the potatoes brown. Then carefully turn it out on a large dish; or you may, if more convenient, send it to table in the dish it was baked in.