For the dough, quark, milk, oil, salt, flour and baking powder use the dough hooks of the hand mixer to make a smooth dough. Wrap in cling film and chill for 30 minutes
Meanwhile, wash the tomatoes for the topping, cut out the stem base. Cut the tomatoes into slices. Clean, wash and thinly slice the zucchini and mushrooms. Peel onions and cut into slices. Slice the cheese, then cut it into pieces of about 2 cm
Roll out the dough on a floured work surface. Place the dough sheet on a greased baking tray. Spread the prepared vegetables on it and season with salt and pepper. Sprinkle with cheese and dried herbs. Bake in the preheated oven (electric cooker: 175 °C/ gas: level 3) for 20-30 minutes. Results in about 20 pieces