Wash and peel the carrots and potatoes. Halve the potatoes and cut the carrots into slices. Peel onions and cut into half rings. Cut ham into thick cubes. Heat oil in a frying pan and fry the potatoes for 8-10 minutes, turning.
Then add carrots, ham and onions, fry for about 2 minutes and season with salt and pepper. Pour on broth and stew covered for about 5 minutes. In the meantime wash parsley, dab dry and chop it except for something to garnish.
Mix in parsley and spread crème fraîche as a blob on the potatoes. Sprinkle with cheese and continue to braise covered for 1-2 minutes until the cheese has melted. Arrange potato pan on plates and serve garnished with parsley.