Peel and wash the potatoes and cook in salted water for about 20 minutes. Peel, wash and cut the kohlrabi into narrow slices. Cook in the boiling broth with some nutmeg for about 8 minutes. Then drain and collect the broth. Meanwhile wash the meat, dab dry and cut into strips.
Clean and wash the tomatoes and cut them into small cubes. Heat oil in a pan. Brown the meat all around. Add the tomatoes and fry briefly. Deglaze with 200 ml broth. Stir in sour cream and mustard. Season to taste with salt and pepper. Wash the chives and cut into small rolls, except for a little bit for garnishing. Drain the potatoes.
Stir in sour cream and mustard. Season to taste with salt and pepper. Wash the chives and cut into small rolls, except for a little bit for garnishing. Drain the potatoes. Arrange the shredded and potatoes on plates. Sprinkle with chives and garnish