(Washington Examiner) — District students head back to school today, and at a few D.C. Public Schools, they will walk into brand-new or brilliantly renovated facilities. But at many more schools, students will find smaller but significant upgrades: new salad bars. This year, 27 DCPS schools will feature cafeteria salad bars, about double the number from last year. It’s the latest upgrade to school meals under nutrition chief Jeff Mills, who was hired by ex-chancellorMichelle A. Rhee to overhaul the school system’s dismal food service. Last year, Mills earned plaudits for encouraging schools to start vegetable gardens and for banning sugary flavored milk. He also worked on less Hot projects like improving food sourcing and upgrading school kitchens to do more than simply reheat prepackaged meals. This year, under Chancellor Kaya Henderson, Mills said his local sourcing efforts have kicked into overdrive.