Put in a bowl the ham and the stems of the affected mushrooms.
add garlic, parsley and parmesan cheese.
salt and pepper and mix well this mixture.
Apart to put the chapels of the mushrooms in a heat-resistant pan with oil.
fill them with the mixture and to dust with the bread crumb.
sprinkle with tassels of butter.
put in warm oven to 160°C and leave to cook for 35 minutes.
To serve with the lemon squeezed above the mushrooms.