The dough for this pie can be made. Suitable "Napoleonic" or about puff with cottage cheese, the main thing that it was not sweet. I bought frozen puff pastry. The finished dough to defrost. To prepare the fillets: thaw the fish and season with salt and sprinkle with lemon juice and sprinkle with favorite herbs, the main thing - do not overdo it so as not to clog the taste of the fish. I had fillet of pangasius. You can take the salmon fillet, but since it's a bit dry, grease or butter, or mayonnaise for richness.

Mushrooms wash, cut into slices, onion cut into quarter - or half-rings. Onions and mushrooms and fry in oil until transparent onions, don't overcook, season with salt to taste.

Roll the dough to fit the fish and all strontium remained the free place. The top layer of dough should be a little more. To avoid problems with the transfer of the dough on a baking sheet, you can form the pie on a baking sheet or foil.

On the bottom layer of dough to put one fish fillet (laid diagonally). Him to put fried with onions mushrooms. On top lay another fillet. All of this is to close the second layer of dough.

Trim the excess dough around the filling, giving the cake the shape of a fish (an oval and a triangular tail) and leaving a decent supply to have when baking a cake is not torn.

From the remnants of dough to make the fins (I have the tail just does not work, I had "declive"), scales - circles or semicircles, cut glass. The contour of the pie to go with the fork to glue the layers of dough. On top of the pie brush with beaten egg yolk or vegetable oil. To make the fish 2-3 small puncture with the tip of a knife, so the cake is not broke in the baking process (it's not breaking and without punctures).

Put in a preheated 180 degree oven for 15 minutes, the head and tail of the fish to cover with foil to avoid burning, then the temperature was lowered to 10 degrees (remove foil) and bake for another 15-20 minutes (focus on your oven and the appearance of the pie). And this is pie in the cut. Delicious both hot and cold.