It's not so much of an Irish tradition, but an American tradition for St. Patrick's Day to enjoy some alcoholic drinks that are green, contain Irish whiskey, or are somehow connected to Ireland in some way. Your choices go far beyond green beer. The drink here is called an Irish Breakfast, and it was developed by the mixmasters at Datz in Tampa, Florida. It contains several kinds of liquor, coffee, "Guinness mint whipped cream," and Lucky Charms as a garnish. It's not quick or simple, but other cocktail recipes in this roundup at Uproxx will be easier to whip up in a hurry.
We dish up more neat food posts at the Neatolicious blog