Put the tomatoes, red onion, parsley and sumac into a large mixing bowl.
In a smaller bowl, whisk the olive oil, lemon zest, lemon juice, pomegranate molasses and 1 ¼ teaspoons of salt.
Pour the dressing over the salad, add the za’atar or oregano leaves and give it a good mix.
Pile the salad on to a serving platter, and sprinkle with the pomegranate seeds and more sumac.
