Bok choy, all kinds of chard, spring greens, turnip greens, cilantro, parsley, Italian parsley, dandelion greens, nettles (delicious, but use gloves when picking)... Infinite:-)
ecks makes pancakes with turnips. I tried it and they are amazingly yummy. A little starch that's not too starchy.
Hope you get your sleepout and lots of stars!