I posted this as a comment, but now that I'm an official contributor I'll repost ... especially since we seem likely to get lots of chard (yay!)
I became a fan of swiss chard when a friend made me his Majorcan Swiss Chard pizza. When we make pizzas this disappears faster than anything - including pepperoni & cheese. I don't know if it's authentically Majorcan but my friend ate it lots in Majorca.
Marc's Majorcan Swiss Chard Pizza
-2 med. onions, chopped
-2 red sweet peppers, chopped
-5 cloves of garlic (or to taste) minced
-1 bunch swiss chard
-lots of salt and pepper
-pizza crust or flatbread
-feta or cooked chicken pieces if desired
Chop the onion and saute with the garlic in a little olive oil in a large pan or wok. Chop the stems of the chard and add; chop red peppers and add. Cook low-med about 10 minutes. Chop the leaves of the chard and add, stirring, until just wilted. Spread olive oil on the pizza base or flatbread, top with the mixture. Add lots of salt and pepper (put what you would expect then double it - this recipe needs salt). Top with feta and/or chicken if desired. Cook in a high oven (425) until the crust is cooked.
We make our own pizza crust - if anyone wants the recipe let me know.