clean with care the mushrooms eliminating the earthy part of the stem, quickly wash them not to drench them of water, drain them and cut them to thin slices.
Prepared a minced with the anchovies without lisp, the parsley, the basil and the capers, amalgamates the mustard and dilutes the sauce with the juice of the lemon.
Seasoning now with some good oil extra virgin of olive, salt and ground pepper to the moment.
mix well the ingredients and pour the sauce on the mushrooms, turn and wait for a few times before serving.