Briefly fry the meat in hot clarified butter, remove and season.
For the sauce, sauté the beetroot and onions in butter in the same pan. Deglaze with the red wine and let it boil down a little. Add the cream and stock and let it boil down a little. Season the sauce. Add the meat, just heat it up briefly.
Rice goes very well with it, but also pasta or mashed potatoes.