You can add scallions.Add ginger.And star anise.But star anise should be used sparingly (no more than two or three per pound of mutton).When simmering mutton, it is best to include some hawthorns.(Mutton tends to become too tender easily).Do not exceed two to three.When simmering mutton, it is best to add somehawthorn.Mutton is very easy to tenderize.