Boil the potatoes, mash them, then add the egg, milk, spices, and nutmeg.

Grease a baking dish with oil, spread half of the mashed potatoes as the first layer, and add a layer of ground beef as filling.

Add a second layer of mashed potatoes on top, brush with oil, and bake in the oven for 20 minutes or until the top is golden brown. Enjoy!