Wash the potatoes and cook in boiling water for about 20 minutes. Then rinse with cold water and peel. In the meantime peel and wash the carrots and cut them into bite-sized pieces. Cook in boiling broth for about 15 minutes.
Drain, keep stock. Cut the ham into strips. Wrap it around potatoes. Fill carrots and potatoes into an ovenproof dish. Melt fat for the sauce. Sauté the flour in it. Deglaze with the stock and whipped cream.
Bring to the boil while stirring continuously. Stir in cheese. Season with salt, pepper and nutmeg. Pour over the vegetables and bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 20 minutes.
Wash and chop the parsley and sprinkle over it. Serve garnished with small bouquets.