Parents can advocate for an alternative lunch menu, hydroponic gardens and training for school cooks.
The price of school lunch goes up by 25 cents to $1.75 on Monday.
The group Community Food Advocates plans to launch a campaign this fall calling for universal free lunch.
Some 218 schools will be composting food by next spring, Department of Education officials said.
New Yorkers will be forced to pay more for parking and school lunches under the latest budget plan.
Outstanding lunch fees from schools across the city total in the millions of dollars.
Gillibrand was reportedly "still looking" at a plan to remove sugary drinks from the list of acceptable food stamp purchases.
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