Radishes, pretty much anything where you eat leaves instead of fruit, probably tomatoes (cherry tomatoes mature faster), most herbs, likely squash (you can eat the blossoms, stuffed and fried, if it's getting too close to the end of the season).
I'd still plant peas/beans here if I were growing them, but your season may be too short (thinking of pole beans and that type).
Look up days to maturity on whatever you want to grow - you can just Google it. You definitely have time for lots of stuff yet.