Chop mushroom stems, parsley and prosciutto, and mix well with cheese. Stuff mushroom crowns with mixture and spread butter on top. Bake in preheated 375° F oven for 5 minutes.
Baste with wine and sprinkle with paprika. Bake for 10 more minutes.
Toast bread; quarter.
Serve mushrooms on toasted bread.Makes 2 Source: