White Cheddar Stuffed Mushrooms *These little mushrooms have that charming, old-fashioned party feel—warm, savory, and just rich enough to make any gathering feel a bit more special. They’re the kind of appetizer many of us remember setting out for holidays or cozy evenings with friends, always one of the first trays to empty.* What You'll Need (24) white button mushrooms or baby portobello mushrooms (1 1/2 cups) soft herb cheese spread (1/2 cup) finely grated Parmesan cheese (3 slices) provolon