Boil the potatoes in salted water until fully ready.
Next, form meatballs.
Put the butter along the bottom of a tray and start arranging round slices of potatoes. Arrange the meatballs on top, then potato slices between the meatballs.
Put 1-2 tbsp cream on each meatball.
Put in a preheated 356°F (180 °C) oven about 35 min., then sprinkle grated cheese and bake another 15 min. until it reddens.