This Persian salad -- from where else, but the region of Shiraz -- is a delicious and healthy dish that's quite simple and easy to make. It's sort of like a Persian pico de gallo. :-D This no-cook dish consists of only three vegetables -- tomatoes, cucumbers, and onions. They're all chopped to a uniform size and marinated for a short period of time. Typically served in the summer, this salad goes particularly well with other dishes like pita spread with hummus or babaganoush, falafel, or grilled shish kebabs like jujeh (chicken) kebabs.