That day's lunch of roasted chicken, quinoa, and salad in Boulder at Casey Middle School. Chef Ann Cooper is director of food service for the Boulder Valley School District. [Getty Images]

BOULDER, CO - APRIL 30: That day's lunch of roasted chicken, quinoa, and salad in Boulder at Casey Middle School on Thursday, April 30, 2015. (Photo by Cyrus McCrimmon/The Denver Post via Getty Images )

Denver Post Cyrus McCrimmon