I boil my chard - it can be left as a whole leaf or "sliced" across the leaf if you prefer. It doesn't take long, just until it is tender to a fork and kind of folds over the fork when you try to pick it up. Serve it up with butter and a touch of vinegar. Taste - hmmmm - have you ever eaten spinach or fiddle heads? Kind of similar.
I've never eaten kale, and all my cookbooks are still packed, so I can't give you any ideas right now. Remind me in about a month when I've finished unpacking my kitchen *grin*.
Good eating!
Nancy in NB
ICQ #9683431