Mark Iacono sometimes serves a version of this salad at Lucali, his candlelit church of pizza in Brooklyn. It’s what he calls a “bottom of the bowl” salad, reminiscent of what’s left after a long Sunday dinner with family, with tomatoes, black olives and red onion deeply marinated in a vinegar-heavy dressing. He layers these above and below cold, crisp lettuce, adds a final drizzle of dressing and serves the salad with a meatball on top of it. But it goes as well plain alongside a pizza or…