Boil peeled potatoes in salted water until soft. Minced meat with onion and garlic and a little water stew for about 20 minutes. Drain the potatoes and blend them. Add milk, margarine and egg. Add salt and mixed well. To put minced meat parsley and pepper. Half of the puree spread in the pan, minced meat top and cover with remaining sauce. Sprinkle with cheese and bake about 20 minutes in preheated 200 ° C oven.