Potato cheese and ham pie

Wash the potatoes, boil in a uniform, cool, peel and ceiling. Add 50g butter or margarine, 30g grated cheese, nutmeg, salt, pepper and mix well. Beat in the egg and stir again until smooth. Grease the pan with fat, sprinkle with ground crumbs, put half of the potato mass, level, lay out slices of Swiss cheese and ham, put the second half of the mass, level, sprinkle with grated cheese mixed with ground crumbs, distribute pieces of the remaining butter over the surface. Bake in a hot oven for 20-30 minutes until golden brown.