Brush any dirt of the mushrooms and slice them, not too thinly.

Heat the olive oil in a pan, add the mushrooms and fry until cooked. Season with salt and freshly ground black pepper.

Toast the bread and spread with a thin layer of butter. Serve two slices on each plate, cover with the mushrooms and garnish with the parsley.

Serve two slices of toast on each plate, cover with the mushrooms and garnish with the parsley.