Peel the potatoes and cut into small cubes, then cook. Once the potatoes are cooked, mix them with salt, pepper, about 1 tbsp margarine and cream. Half of this mixture is poured on the bottom of a greased baking dish, top ranks of chopped smoked place and broken pieces of processed cheese (if you hold to cut processed cheese, make it smooth, without pressure, hand movements and wet knife) over meat and processed cheese is poured and smoothed the rest of the potato mixture. Stir eggs, savory and yogurt and place in pan. Bake until golden brown to, then removed. Sprinkle with cheese, a few places put a few pieces of margarine and sprinkle with breadcrumbs. Bake until crust.