It's worked at our school for a few years now!
When our school opened we didn't have a kitchen, so students brown bagged it everyday. Just three years ago, the school moved into a "real" school building with a $20,000+ kitchen! SO ever since then the kitchen manager has vowed to do her best to cook real (and really good) lunches. NO YOU CAN'T HAVE HER

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The amazing info that was shared was how much cheaper it is to cook a meal than to warm up a pre-packed item. Something to ask your school to
really look at, numbers are everything! Our teachers and staff have even said they are willing to pay $1-2 more for a fresh salad bar than prepackaed salads purchased from a warehouse.....and they taste better!
Something to explore, that's for sure!