Japanese Four-Coloured Rice with Pork, Greens, Eggs and Pickled Ginger

A festive rice dish, Soboro Gohan is easy to make and looks great. Soboro refers to minced (ground) pork or chicken which is slow-cooked in soy sauce, ginger, sugar and sake until most of the liquid has evaporated, so it is strongly flavoured and a perfect topping for rice. This rice is normally made with three different coloured toppings but I have been greedy and added a fourth. All elements of this dish can be prepared in advance and put together just before serving.