place the mushroom stems in a food processor and chop into small pieces, scrape them out into a bowl. squeeze the turkey sausage our of the casing into the bowl, add the parsley and stir.
place the mushroom caps in a medium bowl and toss with wine, season lightly with salt and pepper.
shake off excess wine from musrooms and reserve the wine in the bowl. place mushrooms open side up on a baking dish.
form the sausage mixture into 8 equal mounds and push into mushroom caps, stuff cheese into each mound leaving a little bit of the cheese exposed. sprinkle each mushroom with panko. spray the musrooms with a light spray of olive oil cooking spray.
pour reserved wine in bottom of the pan, place in the oven. bake the mushrooms until the sausage is fully cooked, about 10 minutes.
remove from oven, serve 2 mushrooms per person and drizzle with any pan juices.