Peel and wash the potatoes. Clean, wash and drain the carrots and cabbage. Cut cabbage into eight slices, carrots into fine slices. Peel onions, cut into strips. Cut the slices of Kasseler into strips
Cook the cabbage in almost 3/4 l boiling salted water for about 8 minutes. Add carrots and cook for another 8 minutes. Lift out the vegetables and place them on a large ovenproof dish or in an ovenproof dish. Measure out 1/2 l vegetable water. Cook potatoes in salted water for about 20 minutes
Heat the oil in a frying pan. Fry the smoked pork in it in portions while turning. Fry the onions briefly. Put all the meat back into the pan. Season with pepper and a little salt. Dust with flour, sauté briefly and deglaze with vegetable water. Stir in crème fraîche and bring to the boil. Cover and simmer for about 5 minutes
Wash the herbs and, except for a little, cut them finely. Stir into the shredded meat. Season to taste and spread over the vegetables
Heat butter. Stir in breadcrumbs and roast briefly. Pour over vegetables and meat. Gratinate under the preheated grill or in the oven at highest heat for about 5 minutes. Arrange everything and garnish with remaining herbs