Preheat your outdoor grill or a grill pan to medium-high heat. Combine the chicken, salt, pepper, hot sauce, mustard, Panko crumbs, lemon juice and chives in a large bowl. Form into four 1/2-inch-thick burgers.
Grill the burgers, flipping until the juices run clear, about 8 to 10 minutes. Top the burger with cheese during the last minute of cooking, if desired, and close the grill hood or cover the pan to melt it.
Meanwhile, lightly brown the buns, if desired, or serve them pillowy soft. Add anything you like, including Boston lettuce, sliced red onion, pickles, mayo, chopped fresh cilantro, etc.
Recipe Notes
(Delicious with a chilled Italian pinot grigio or Austrian gruner veltliner.)