According to the USDA, you can:
Help promote the National Hunger Hotline at 1-866-3-Hungry or 1-877-8-HAMBRE. The Hotline staff can provide families, parents and children with information on where summer meal sites are in their community in addition to other food help resources. It’s a free call, available in both English and Spanish.And from the charity Feeding America:
Our local food bank can be found at Long Island Cares if you would like to make a donation.During the school year, 21 million kids depend on free and reduced price school meals programs to help them grow and thrive.But for millions of kids, summer vacation means going without the steady school lunch that they need and depend on. Which is why, today, I’m turning to you.Make a gift to help feed children and families facing hunger this summer and it will have twice the impact thanks to a challenge grant from ConAgra Foods Foundation.
You can also donate extra food from your garden to several local food pantries and social service locations through AmpleHarvest.org.