Lightly brush the patties, onion slices, and pineapple rings with oil. Brush the cooking grates clean. Grill the patties over direct medium heat, with the lid closed, until fully cooked (165ºF), 12 to 14 minutes, turning once. At the same time, grill the onion slices until tender and the pineapple rings until heated through, 4 to 6 minutes, turning once or twice. During the last minute of grilling time, toast the buns over direct heat. Remove from the grill as they are done.
Lightly brush the patties, onion slices, and pineapple rings with oil. Brush the cooking grates clean. Grill the patties over direct medium heat, with the lid closed, until fully cooked (165°F), 12 to 14 minutes, turning once. At the same time, grill the onion slices until tender and the pineapple rings until heated through, 4 to 6 minutes, turning once or twice. During the last minute of grilling time, toast the buns over medium heat. Remove from the grill as they are done.
Lightly brush the patties, onion slices, and pineapple rings with oil. Brush the cooking grates clean. Grill the patties over medium heat, with the lid closed, until fully cooked (165°F), 12 to 14 minutes, turning once. At the same time, grill the onion slices until tender and the pineapple rings until heated through, 4 to 6 minutes, turning once or twice. During the last minute of grilling time, toast the buns over medium heat. Remove from the grill as they are done.
