We cut off all the excess from the chicken breast, gently cut along, as a result of one thin breast we get two thin pieces, each of them is slightly beaten off
We spread it in a mold, it is not necessary to process the butter
We clean the onion, cut in half and in half rings
We spread half the onion on top of the chicken.
Cut the tomatoes into circles.
We spread on top of the chicken with onions, sprinkle with spices, send to the oven 200 C, almost until ready
Meanwhile, three cheese
When the chicken turned white, and almost ready, take out the form, sprinkle with grated cheese and send for a couple of minutes