Here's how I like my swiss chard - grew them in my garden in CA when I found out swiss chard was great for helping with water retention (and I had a lot in my legs while pregnant!) Learned to love it then.
I have a steamer that I use with most everything. Or you can sautee it in your pan, either way. Depends on how much flavor you want or how non-fat you want it to be....
Wash well, trim stalk ends and whatever needs to be trimmed off (brown edges if any, for example). I cut up the (celery-like) stalks first and put those in the bottom of the steamer basket or pan, whichever I'm using. Then continue cutting up (in apx 1" maybe 3/4") strips across the width of the leaves and pile it in. (you do want a pile, it shrinks a lot!)
We liked to add in an onion, preferably sweet red, or/and an apple, diced, and layer it in the greens. Cook it all together. In the steamer, that's all that there was. In the fry pan, bacon for the grease as well as flavor is great. Or just a bit of oil on the pan to keep the greens moving and cooking. I now use coconut oil, didn't before, but that would be a good oil to use to cook all this with?
I like it as is, sprinkled with salt. My husband douses his with butter and vinegar (he's not a big fan of this!)
My sister LOVES her superduper blender and whirling kale & apples and/or bananas into a green smoothie and drinking (or eating from a bowl if thick, like yogurt consistency). Any greens can be done this way - certain greens (ie, kale) are better with sweeter fruits (banana, apples) while others are yummier with pears, she says. She's in Colo so I've only seen/sampled it once or twice. I tried adding spinach to my strawberry smoothie once. Never again, LOL! Maybe I just added too much but I'm not wasting my yummy strawberries again LOL.
Do you make stir frys??? I got some Bok Choy the other day and intend to use this in stir fry. Basically cut your meat of choice into thin strips, cook (wok or large skillet). Cut up all your veggies in bite size pieces. Put thicker/harder ones in first to cook (ie carrots & stalks) then as it cooks, continue adding in the thinner, lighter pieces. Green leaves (cut into strips, and maybe across the width once or twice) go in last, and once it wilts, it's ready. Spinach, bok choy, chard, are what I've used, but I imagine anything can be used. I think kale has a stronger flavor, I just don't like it but maybe that's just me. (my mom likes kale better than spinach, yeech!)