Let the puff pastry thaw. Wash and halve the tomatoes. Place half a tomato and about 6 cubes of pickled sheep`s cheese on each of the puff pastry slices. Fold the corners to the middle and close the pockets tightly. Bake in a preheated oven (fan oven) at 200 ° for about 20 minutes until the dumplings are golden brown in color.