Wash, clean and drain the mushrooms thoroughly. Wash and chop the tomatoes. Peel shallots and cut into rings. Wash the chives and cut into small rolls. Cut meat into strips.
Heat oil in a coated pan. Sauté the meat in it while turning. Season with salt and pepper and remove. Fry the mushrooms in the frying fat
Add tomatoes and shallots, fry briefly, season with salt, pepper and sugar. Deglaze with creme and stock, simmer for 2-3 minutes. Mix in meat and chives, except for a little bit for garnishing, season to taste. Sprinkle with remaining chives