Agni is the Sanskrit word for fire, a nod to Avishar Barua’s live-fire cooking and his Bengali heritage. Credit: Erika Gene Clark Photography I'm sitting down to dinner at Agni, an upscale tasting-menu restaurant in Columbus, Ohio, when I’m served a “happy meal” as my first course. A nod to chef Avishar Barua’s childhood, the Happiest Meal is the kickoff to a parade of dishes heavily influenced by his personal experiences and travels. But you won’t find anything like this under the Golden Arches.