Start with the tahini dressing at the bottom of each jar. Next, layer in the olives, tomatoes, chickpeas, feta cheese, bell peppers, cucumber, and finally, the romaine lettuce. Seal the jars and refrigerate for up to 5 days.
3/4 cup Kalamata olives, 1 cup sliced grape tomatoes, 1 (15 ounce) can, 1/3 cup feta cheese crumbles, 1 cup chopped bell peppers, 1 cup chopped Persian cucumbers, 1 cup shredded romaine lettuce