In England, a pie made with meat and topped with mashed potato has traditionally been called cottage pie. Shepherd's pie is a cottage pie made with ground lamb. (These days cottage pie is usually made with ground beef.) u003cbr/u003eu003cbr/u003eIn this vegan shepherd's pie, the lamb is replaced with a savory mixture of lentils and chickpeas, and the mashed potato layer incorporates some sweet potatoes for extra color and flavor.u003cbr/u003e