Clean and wash the Brussels sprouts and cook them in boiling salted water for about 20 minutes. Wash chops and pat dry. Fry them in 1-2 tablespoons of hot oil on each side for about 1 minute.
Season with salt and pepper. Fry at medium heat for another 5 minutes. In the meantime peel the onions. Dice 2 onions. Cut the rest into slices. Mix onion cubes and mustard and spread on the chops.
Bake in the preheated oven (electric oven: 225 ° C/ gas: level 4) for 3-4 minutes. Cut bacon into pieces. Heat the remaining oil in a pan. Leave out the bacon, brown the onion slices.
Add Brussels sprouts, stir in crème fraiche. Season with salt, pepper and nutmeg. Serve everything garnished with parsley.