Slightly adapted from Food52. Notes: * The third time I made this, I was out of bread — the horror! — and I used two English muffins instead. Worked like a charm. Also, I zest the lemon right into the bowl of chard, but you can add it to the dressing, too — it doesn't make much of a difference. And I add a pinch of red pepper flakes, but again, this is just personal preference.