In an unexpected turn of events, I actually harvested food from what I thought was a totally failed attempt at a backyard garden:
That's swiss chard, carrots w/ greens, a coupla peas, and basil (peas and basil from DIY Earthbox). I'd planted seeds in the yard a couple months ago, watered them for a week or so, then gone out of town and assumed they'd all died. Good motivation to actually start taking care of gardens!