Preheat your oven to 400 F. Spray a small disposable pan with non-stick spray.
Clean the mushrooms and remove the stems.
Dip the mushrooms cap-side down into the butter and place onto the baking dish cap-side up.
Pour the remaining butter into the baking dish.
Sprinkle the mushrooms with salt. Bake 10 minutes. The mushrooms should just be soft and most of the water in them should be cooked out.
In a medium bowl, combine the cream cheese, Parmesan, Mozzarella, bacon, bell pepper and a pinch or so of cayenne. Add salt to taste.
Using a small spoon, gently fill each mushroom with the cheese mixture. Mound it up high. Place in a small disposable pan that will fit onto the Big Easy or place directly on a Big Easy basket or Bunk Bed Basket.
Sprinkle tops of the mushrooms with paprika.
Fire up your Big Easy and let it get good and hot.
Transfer the basket and/or pan to a Big Easy basket and place into the cooker. Cook 15-20 minutes or until the stuffing is hot.
Garnish with more bacon, bell pepper and parsley if desired and serve.