Prepare jacket potatoes, peel them ^^ and, like the zucchini, cut into slices a maximum of 0.5cm thick. Chop the garlic, mix with the yogurt and the 3 tablespoons of water. Layer the potato / zucchini in the mold, season with salt & pepper, pour yogurt over it, sprinkle on the cheese and bake at 180 degrees for 20-25 minutes.