Pistachios—lots of them—give these ground-beef kofte a rich, toasty flavor that’s balanced by the sweetness of dried mint and the grassiness of fresh dill. Most supermarkets sell shelled pistachios that are already toasted and salted. If you start with raw ones, toast them in a 400°F oven for about 8 minutes, stirring once, and increase the salt in the meat mixture by ¼ teaspoon. Serve with shredded romaine lettuce, thinly sliced red onion and warmed flatbreads.