1 tablespoon olive oil
2 tablespoons minced shallots
2 cloves garlic (minced)
2 tablespoons finely chopped prosciutto or pancetta
1 tablespoon extra-dry vermouth or white wine
  grated zest of 1/2 lemon
2 cups chopped Earthbound Farm Organic Baby Spinach
3/4 cup crab meat (drained well)
2 tablespoons cream cheese
2/3 cup grated Pecorino Romano cheese (divided)
  pinch cayenne pepper
  Sea salt (to taste)
20 fresh mushrooms (with caps about 1-1/2 to 2 inches wide)