Toast pita bread in a toaster oven until browned, 2 to 4 minutes; crumble into bite-size pieces.
Combine cucumbers, tomatoes, onion, romaine lettuce, parsley, and mint in a large bowl. Mix olive oil, sumac, salt, and pepper into cucumber mixture using your hands. Add crumbled pita bread and toss.
This was good! I did not use the romaine b/c I didn't have any, but followed the recipe otherwise. I would've like some fresh lemon juice in addition to the sumac in this, as well, but that's my...