Glen Osterberg (right) and another line cook at Lupa learn how to use the LeanPath waste tracking software. Eliza Barclay/NPR hide caption

itoggle caption Eliza Barclay/NPR

Chef Mario Batali prepares dishes for the crowd at the world premiere of Volkswagen's new Jetta compact sedan in New York City in 2010. Jemal Countess/Getty Images hide caption

itoggle caption Jemal Countess/Getty Images