The heat of the harissa (which you can find in most supermarkets) goes so well with the saltiness of the halloumi and the flavor of the za’atar. I tend to eat halloumi quite a lot, as it has the sort of meaty, chewy texture I sometimes crave when I am being a part-time veggie. I sometimes sprinkle pomegranate seeds onto the harissa yogurt, which adds a little sweet note to this dish.