Give guests a taste of the Emerald Isle by setting up a mashed potato and mix-ins bar.
Put a round chafing dish or crock-pot of mashed potatoes on your food buffet. You can also warm potatoes in a large bowl in the microwave just before guests are ready to eat.
Place small matching bowls of favorite mashed potato mix-ins like cheddar cheese, bacon, and sour cream on the table.
Stack soup bowls, mugs, or crocks on the buffet along with spoons so that guests can mix up their own special blend of loaded potatoes.