Clean, trim and quarter the mushrooms. Heat 1 tablespoon of oil in a pan. Fry the mushrooms for 3-4 minutes while turning them brown, season with salt and pepper and remove. Add 2 tablespoons of oil in portions to the pan. Fry the slices of bread in the oil until brown in portions, remove.
Bring 1 litre of water to the boil in a wide pot. Season with salt and vinegar. Lightly brush a soup ladle with oil. Beat the eggs one after the other into the soup ladle and carefully slide them into the vinegar water. With a spoon, place the egg white over the egg yolk. Cook at low heat for about 4 minutes. Remove the eggs and let them drip off on a plate
Clean and wash the salad. Wash parsley, shake dry and, except for something to garnish, pluck leaves from the stalks and chop. Place 1 lettuce leaf on each bread. Arrange mushrooms and 1 egg each on top, sprinkle with parsley and pepper. Arrange breads on plates and garnish with parsley