Chobani Yogurt was definitely not Greek to New York’s two U.S. senators — as millions of American kids may soon learn. Chobani is the upstart, upstate Greek yogurt firm that has come out of nowhere to make its Turkish immigrant founder a billionaire. And due to lightning-fast work by Sens. Chuck Schumer and Kirsten Gillibrand, it may find a lucrative spot in the $11 billion federal school-lunch program that serves meals in 100,000 schools nationwide.