Peel the potatoes and cook in salted water for 20 minutes. In the meantime, wash the fish and pat dry. Sprinkle with lemon juice. Beat the egg with salt and some pepper. Turn sole in egg and breadcrumbs one after the other.
Fry in hot oil on both sides for five minutes. Meanwhile wash the herbs. Chop finely except for one bunch to garnish. Sprinkle parsley over the potatoes. Heat the remaining chopped herbs and fat.
Season with pepper. Pour over the sole. Serve garnished with lemon and tomato slices and a bouquet of herbs. Cucumber salad tastes good with it.