• Food, fun and “opa!” Experience Greek culture at the Lincoln Park Greek Fest. The St. George Greek Orthodox Church, 2701 N. Sheffield Ave., will open its arms and kitchens to visitors all weekend.• South-of-the-border fare is in the spotlight at the Taste of Little Village: Flavors of Mexico at 26th Street and Sacramento Avenue. This culinary and cultural event will serve up authentic dishes and entertainment for adults and children.• The Taste of Randolph Street is calling all foodies and …