I didn’t really measure when I made this, so I don’t have a recipe to share. But my friend Heather suggested making a pesto with bok choy/pac choi (she also used radish greens; I used some spinach and garlic scapes). I did this (I get a LOT of bok choy in my CSA) and it turned out quite well. It’s a more watery pesto than the traditional style, but still flavorful. I used it as a marinade for chicken.