Peel and wash the carrot and potatoes. Halve potatoes and cut carrots into slices. Clean and wash the cauliflower and cut it into small florets. Put carrots, potatoes and cauliflower in 1/4 litre of boiling salted water. Cover and cook for about 12 minutes. In the meantime dab meat dry. Fry in hot oil on each side for about 1 minute.
Season with salt and pepper. Fry for a further 3 minutes. Remove vegetables from the stock. Bring the stock to the boil and thicken with sauce thickener. Season with salt, pepper, nutmeg and 1 pinch of sugar. Add vegetables again. Serve medallions and vegetables garnished with parsley