We had not-so-good luck with the chard (eaten by bugs), tatsoi (ditto), and lacinato kale (dunno, most of it just died), but the arugula -- the one green I thought would kick the bucket the fastest -- went crazy. I picked a whole bunch today for dinner tonight.
You can see some of the mesclun mix snuck in there (most of that died too).
Other greens I planted that have somehow survived: siberian kale, mustard (this stuff is thriving), and spinach (growing VERY slowly).
Next, I hope to continue my love affair with parsley by planting some.