Is anyone out there a member of a CSA, an arrangement with a local farmer that entitles you to a weekly delivery of organic produce? If you are, you know that spring is the cruelest season for us local produce-loving hippies. It’s that time of the year when your weekly box overfloweth with greens. And I’m not talking spinach. I’m talking bitter greens. Weird greens that only us CSA-types have even heard of: tatsoi, pak choy, kohlrabi. Greens that your kid won’t touch with a 10-foot-pole. Greens so big they won’t fit into bags, so big they fill up your fridge’s veggie drawer and demand a whole extra shelf for storage. Greens so sandy and gritty that they require five, six, seven rinses to become edible.