[jroo]

• Bring several sprout bags. Start a batch in half of the bags about 5 days before you leave and the second batch the day you leave. You should be able to make one or two more batches beyond this. Hang them from your backpack and get them wet two or three times a day (depending on how hot it is).
• Sweet potatoes. Just cut them up and eat them.
• Zucchini or yellow squash (although store bought might not last long enough. I was thinking about how long it lasts after being picked from a garden).
• I would think citrus would last a good part of the time.
• Do you know how to spot wild edibles? Maybe there's a class offered somewhere nearby before your trip.