Wash the schnitzel and dab dry. Whisk egg, salt and pepper. Mix 30 g flour, breadcrumbs and cheese. Turn the schnitzel first in the egg, then in the cheese mixture. Cut bacon into cubes and let it crisp in a pan without fat.
Remove bacon from the pan. Fry the schnitzel for about 15 minutes while turning. In the meantime, clean and wash the leek and cut it diagonally into rings. Peel carrots, first cut into pieces, then lengthwise into slices. Cook the vegetables in the broth for about 10 minutes, drain and collect the cooking liquid. Melt the fat, add the rest of the flour and sauté while stirring. Add vegetable stock and cream and simmer for about 10 minutes at low heat. Season with salt, pepper, orange juice and zest. Wash parsley, dab dry and chop. Add bacon and parsley to the escalopes and warm up briefly.
Melt the fat, add the rest of the flour and sauté while stirring. Add vegetable stock and cream and simmer for about 10 minutes at low heat. Season with salt, pepper, orange juice and zest. Wash parsley, dab dry and chop. Add bacon and parsley to the escalopes and warm up briefly. Arrange vegetables, schnitzel and sauce on a plate. Garnish with orange slices if desired.