Start grill. Slice pineapple into 6 large chunks. Set aside.
Season chicken thighs with favorite seasoning.
Place chicken thighs and pineapple on hot grill. Grill chicken thighs for 5 minutes on each side. Grill pineapple for 5 minutes on each side. Remove pineapple from grill.
Lightly brush chicken thighs with BBQ sauce and cook for 1 minute on each side. Remove from grill and place on cutting board.
Slice pineapple and chicken into slider/bun sized pieces. Place pineapple slice on King's Hawaiian roll then top with grilled bbq chicken. Enjoy!