Preheat oven to 180 °C. peel Potatoes and cook in salted boiling water until soft. Drain almost all the water, crush the potatoes in the puree, add the melted cheese, stir. Add beaten eggs, stir until smooth, salt.
Finely chop the peeled onions, fry in butter until Golden brown. Put the minced meat, increase the heat to the maximum and cook, stirring all the time and breaking the lumps until the minced meat changes color.
Put the minced meat in a baking dish with a diameter of 24 cm, put the potato and cheese mass on top, level, sprinkle with breadcrumbs. Bake at the bottom of the oven for 30 minutes. Serve hot.