Wash the potatoes and cook them covered in water for about 20 minutes. Quench, peel and let cool
Peel and quarter the kohlrabi and cut into thin slices. Cover and steam in little boiling salted water for about 4 minutes. Drain well
Cut the potatoes into slices. Lay the potato and kohlrabi slices in a large greased gratin dish like roof tiles, season. Stir cream and 1 tbsp. flour until smooth, pour evenly over it. Grate cheese over it. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 40 minutes
Wash the fillet, dab dry and cut into approx. 8 diagonal (approx. 1 1/2 cm thick) slices. Press a little flat. Whisk egg and 1-2 tbsp. water, season. Turn the cutlets first in approx. 3 tbsp. flour, then in egg and finally in breadcrumbs. Press the breadcrumbs well
Fry the escalopes in hot oil in a coated pan for 2-3 minutes on each side. Wash and slice the tomatoes. Cover schnitzel with tomatoes and capers. Arrange and garnish everything
Drink: white wine or cider