Shawarma is the Middle Eastern way of slowly roasting spiced and marinated lamb, chicken, or veal on a vertical, rotating spit and thinly slicing it to serve. This colorful salad borrows that classic dish's flavors: a warm and toasty blend of coriander, cumin, cinnamon, pepper, turmeric, and allspice. And while you could blend your own spices, of course, shawarma seasoning mixes are widely available shortcuts. Here, chicken is tossed with shawarma seasoning and oil, and then broiled until it's nicely charred in spots, tender, and juicy. Served with peppery arugula, a shower of herbs, creamy yogurt dressing, and warm pita, it's a salad that's both flavorful and filling.