First, prepare the filet. Cut the fillet in half lengthwise. Put in a plastic bag (or cover with a film) and beat. Roll the dough to a thickness of about 0.5 cm. Lay a piece of fillet on the dough. We put cheese, salt and pepper on top. Twist into a roll. Put the rolls on a baking sheet. Lubricate with an egg, sprinkle with sesame seeds. Put a baking sheet in a preheated oven to 190 degrees for 30-40 minutes.