Fillet is cut and fry in half sunflower oil. Remove the meat in the oil and fry the onions, then add the sliced ​​mushrooms. As tender and add the wine, allow to stew. Once ready mixed with the meat and the flavored with salt and pepper. Puff dough is divided into two parts. Of each formed body of fish (be the same). One is placed on the filling, leaving a 2 cm side. Dab with yolk and put the other on top. Side and rear stick blades. With the tip of a knife to make minor cuts - to form flakes. For eye put olive. Dab with yolk and bake at 180 C in a preheated oven. The filling may be different - of your choice.