Potato Pie

Ingredients:
3 packs (3x100g) Kartoffel (potatoes) Püree
1 liter warmed milk
1 tablespoon butter or margarine, melted
salt, pepper, nutmeg, as desired
100 g grated cheese, only for topping
Mix all of ingredients together
for filling:
Stir fried minced beef and vegetables
500 g minced beef
5 carrots, cut into small pieces
500 g string beans, cut into small pieces
1 onion, finely sliced
3 cloves garlics, crushed
1 teaspoon thyme
1 teaspoon pepper
1 teaspoon sugar
salt, as desired
3 tablespoons cooking oil

Note: I´ve used only a half of filling for this recipe.