I hate the thought of using just lettuce leaves in place of the bun... is that the usual strategy? Or is there some bun-like substance that I could buy at the supermarket or some specialty store? Or a quick recipe that I could make at home? Something with almond flour, I'd guess?
I'm hoping to find something that I could buy, since I don't cook that much, but it might be worth it to prepare something for special occasions.