How to prepare:
- Cut off the mushroom stems. Wipe with a damp cloth.
- Put the sour cream with the milk, lemon juice and chopped chives in a bowl. Mix well and season to taste.
- Slice the mushrooms and add to the sour cream dressing, stirring with a fork so that the mushroom slices are well coated. Add salt.
- Arrange the mushrooms on a plate and garnish with lettuce leaves. Add the endives and black olives.