Clean and wash the Brussels sprouts and cook in boiling salted water for about 20 minutes. Peel onion and cut into rings. Wash and pat chops dry. Heat oil in a pan. Fry the cutlet for 3 minutes on both sides.
Add the onion to the cutlet shortly before the end of the cooking time and fry it. Pour 1 cup (approx. 150 ml) of boiling hot water into a bowl. Stir in 1/2 cup of puree flakes and let it swell for 1 minute.
Stir once more before serving. Drain the Brussels sprouts and let them drain. Cut the bacon into small cubes and drain in the frying fat. Add butter and toss the sprouts in it. Arrange cutlet, onions, Brussels sprouts and mashed potatoes on a plate.
Garnish with parsley.