Cathy Isom fills us in about the egg and celebrating a centuries-old favorite party side dish. That’s coming up on This Land of Ours. Deviled eggs are a favorite hors-d’oeuvres or side dish for parties, holidays, family reunions and potluck dinners. And every year on November 2nd, deviled eggs are the star of the show as Americans celebrate National Deviled Egg Day. Also …