I've seen and posted articles about which weeds are edible, but this is the first article I've seen that actually includes recipes. Scroll to the bottom and there are quite a few recipes.
http://eatlocalgrown.com/article/13270-just-a-weed-or-an-unrecognized-health-boosting-plant.html
http://eatlocalgrown.com/article/13270-just-a-weed-or-an-unrecognized-health-boosting-plant.html