Wash the dill, shake dry, pluck flags from the stems and cut finely. Wash and clean the zucchini, cut them into pieces of about 6 cm length. Coarsely grate the flesh around the seeds. Peel, wash and roughly grate the potatoes. Peel onion and grate it to the potatoes. Stir in dill, starch and egg, season with salt and pepper
Heat the oil in portions in a frying pan at medium heat. Fry about 8 Rösti from the potato mixture in portions. In the meantime, fry the pancetta in a pan without fat until crispy. Clean, wash and shake dry the watercress. Crumble the feta. Arrange fritters, pancetta and watercress. Sprinkle with cheese