Place a Playpiada in the center of the cutting board and lay a strip of feta about 3 cm thick in the lower center. Brush with oil, honey and chili flakes.
Roll the piadina on itself, folding the side flaps toward the center, and seal the closure by brushing with beaten egg.
Brush the surface of the piadina stick with beaten egg and sprinkle with sesame seeds. Bake in a ventilated oven or air fryer at 180°C (350°F) for about 15 minutes.