Pita Burgers with Crisped Cheese

This burger, inspired by the popular folded cheeseburger served at Miznon, an Israeli restaurant with multiple locations, is seasoned with yellow mustard for spicy tang and dill pickles for brininess. We then fill pita halves with the mixture, forming a thin layer, along with sliced onion and cheese. Cheese hits the skillet when the sandwiches are pan-fried, crisping and developing flavorful caramelization, and creating an irresistible layer that contrasts deliciously with the juicy patties. Be sure to use 90 percent lean ground beef; meat that is higher in fat will shrink and the pitas will be greasy.