Preheat oven (electric cooker: 220 °C/circulating air: 200 °C/gas: see manufacturer). Wash and clean the zucchini, slice lengthwise into thin slices. Sprinkle lightly with salt.
Cut the dough crosswise into 4 strips (à approx. 10 cm). Place on a baking tray covered with baking paper. Spread with 1 tbsp. pesto each. Bake for about 10 minutes.
In the meantime, dab the zucchini dry and fry briefly in hot oil in a pan. Roughly pluck the basil. Cut mozzarella into thin slices. Spread with zucchini on the strips. Season with salt and pepper.