Peel onions and cut them into rings. Heat 1 tablespoon of oil in a pan and sauté 2 onions in it for about 5 minutes until golden. Remove and put aside. Wash the turkey escalopes, dab dry and cut in half crosswise.
Spread the turkey escalopes on a worktop, season with salt and pepper and spread 1/2 tablespoon of mustard on each. Spread onions on top and roll up. Wrap each with 1/2 slice of bacon. Heat the remaining oil in a frying pan and fry the rolls in it for about 5 minutes.
Add the remaining onion, sauté and dust with a little flour. Deglaze with broth and let it stew covered for about 15 minutes at medium heat. In the meantime peel kohlrabi and cut into slices.
Heat the fat in a saucepan, add sugar and allow to caramelise slightly. Add kohlrabi, toss briefly and glaze in it. Season with salt and nutmeg and deglaze with 100 ml water. Steam covered for about 8 minutes.
In the meantime, clean, wash and drain the sugar snap peas. Add sugar snap peas to the kohlrabi about 2 minutes before the end of the cooking time. Remove the turkey rolls and keep warm. Bring the stock to the boil and if necessary season again with salt and pepper.
Arrange turkey rolls on plates with sauce and vegetables and garnish with herbs. Roast wedges taste good with them.