cut loaf of white bread into small cubes. Saute onions and celery in melted butter in large fry pan or pot overlow heat. When onions and celery turn soft and translucent, add cubes of white bread, chopped parsley, salt and pepper. You may need to add some chicken stock at this time.
Stuffing should be soft but hold together. Add mushrooms. Transfer to a baking dish and bake at 325 degrees for about 25 minutes. Serve while hot. Enjoy!