In a large bowl, combine all chopped vegetables, fresh herbs and toss through the dressing. Place fattoush in a serving salad bowl and crush the baked pita bread into bite-sized pieces on top. Serve immediately with an additional sprinkle of sumac.
2 cups Tomatoes, 2 cups Romaine Lettuce, 2 cups Lebanese cucumbers, 1 cup Bell Peppers, ¾ cup White Onion, ½ cup Radishes, ½ cup Purslane, ¼ cup Fresh mint leaves, ¼ cup Fresh parsley