This is what was inside the mystery packet. The assembled burger, before wrapping. That's a chimichurri-ish sauce on top: parsley, garlic, lime, a little sugar.
The Unwrapped. And yes, that is an English muffin. We like Gabriella Hamilton's Prune burger, a lot. She does the muffin thing.
And, I promise, our previous evening's supper was entirely vegetable: burdock stems, carrots and shallots, a la Grecque (basically a slow-cooked emulsion of lemon and olive oil with the vegetables, and lots of aromatics - coriander seeds, parsley, fennel, celery, garlic). On basmati rice. Vegetable comfort food.
But these burgers are Frenchman comfort food. And one must comfort one's Frenchman when one can.