Wash the potatoes and boil in salted water for 20 minutes. Stir curd and yoghurt in a bowl until smooth. Peel and finely chop the onion. Clean and wash the radishes and cut them into sticks.
Wash the herbs, dab dry and chop finely, except for a little to garnish. Mix the radishes, herbs and diced onion into the quark. Season to taste with salt and pepper. Drain the jacket potatoes and peel off the skin as desired.
Arrange on plates with cottage cheese and salmon ham. Sprinkle ham with coarse pepper. Serve garnished with remaining herbs.