Wash potatoes thoroughly and boil in water for about 25 minutes. Drain and allow to cool.
Cut mini-salamis into thin slices. Wash the thyme and remove the leaves.
Wash the zucchini. Cut the zucchini and potatoes in half lengthwise. Rub a little oil all around and grill on the hot grill with the cut surface facing down for about 3 minutes
Place the zucchini and potato halves in aluminium grill trays with the cut surface facing upwards. Sprinkle with cheese, salami and thyme. Bake for approx. 10 minutes on a closed grill