Shepherd's pie is a hearty and comforting British dish made with minced lamb or beef, topped with mashed potatoes and baked until golden and bubbling. The meat is cooked with onions, carrots, and peas in a rich gravy, and then topped with a layer of creamy mashed potatoes. The pie is then baked in the oven until the top is crispy and the filling is piping hot. It is a delicious and satisfying meal that is perfect for cold winter nights.