Directions Preheat oven to 350 degrees.
Pop stems from mushroom caps.
In a mixing bowl, blend sausage, bread crumbs, sage and red peppers, and onions if desired. Place sausage balls into the mushroom cap and place on an ungreased cookie sheet. Place in the oven at 325 degrees-350 degrees for 30 to 45 minutes. Mushrooms will lose moisture, however, they will reabsorb flavor and moisture from the sausage. Once done, remove and blot the bottoms of the mushrooms on paper towels and place on a serving platter garnished with parsley.