I made this Swiss Chard and Onion Frittata based on the Frittata recipe in Super Natural Every Day. Chopping all the Swiss chard was time consuming, but the frittata is tasty! We used 2 eggs and 3/4 cup + 1 tablespoon egg whites. In addition to the Swiss chard and two smallish onions, I tossed in two tiny potatoes, sliced paper thin. They were good, but not necessary. We topped the frittata with crumbled feta. I'm grateful that I found a way to use this week's Swiss chard - I've been throwing it away and I feel really guilty about it.