Preheat grill. Meanwhile, in a large bowl combine turkey, onion, yogurt, dill, garlic, TABASCO® Sauce, and salt and mix well. Shape mixture into four 1/2-inch-thick patties.
Grill burgers 4 to 6 inches from heat source, 3 to 4 minutes on each side or until no longer pink inside. To serve, place turkey burgers on rolls and, if desired, top with lettuce and tomato.
Makes 4 servings.