In a pan, sauté the onion and the garlic, add the tomato and sauté for another 2 minutes. Add some parsley and chives, oregano and paprika, mix it all together very well. Add the chicken, the water, and salt to taste, mix. Let the water evaporate.
Roll out the pastry dough, spread the creamy cheese, add half of the mozzarella cheese, add all the shredded chicken then the rest of the mozzarella cheese.
Roll it up very well, rub some water around the edges of the dough, cut off the rest of this dough and seal it tightly.
Use a fork to seal the edges.
Put it in a baking dish greased with oil, brush an egg yolk all over the dough and bake in a preheated oven at 180°C (356°F) for 40 minutes, or until browned on top.