Dice the onions and sauté fat-free, add the tartare and fry until crumbly.
Cut the savoy cabbage and tomatoes into small pieces and add both to the tartare, deglaze with the stock, stir in the processed cheese and cook for about 8 minutes. Season to taste with pepper, salt and nutmeg.
Is good firm to the bite, but very, very tasty. 2 minutes later it is already too soft, but of course that is a matter of taste.