Stir egg with water, add salt, add the flour and knead the dough. As needed flour you can pour. When the dough stops sticking to the hands, wrap it in plastic wrap and refrigerate for half an hour.
Meat grind in a meat grinder along with garlic and one onion, add salt, pepper, mix well. Stuffing leave to stand for 20 minutes.
Make dumplings the size two times less than usual. Heat the pan, melt it the butter and fry the dumplings until a beautiful Golden color. If dumplings a lot, divide them into several portions to the pan they were placed in a single layer. Put them in a bowl.
Slice the second onion very finely and lightly fry in the remaining butter, add to the pan chopped slices mushrooms, stir fry all together for about three minutes and lightly salt them.
On the bottom place a layer of tortillas, stuff to 15, the top layer of mushrooms with onions, make a vegetable broth and add it to dumplings in the potto just cover the mushrooms, sprinkle everything with grated on a coarse grater cheese. Lids close is not necessary.
Preheat the oven to 200oC, place it in a pot and bake half an hour. Before serving, sprinkle on top of some greens. Dumplings in the pot ready!