For up-and-coming vegan chef and entrepreneur Jay Astafa, the decision to part ways with dairy came at an early age. In 2009, at just 16 years old, he introduced an entirely vegan menu at his father’s Italian pizzeria in Long Island, N.Y. The 3 Brothers Pizza Café menu was a tremendous success, drawing a cult following, an award for “Best Vegan Pizza” from PETA, and mentions in The New York Times as well as other media outlets.
Now with some formal education from New Yor…