Caribbean jerk seasoning can vary quite dramatically in heat so it may be necessary to adjust the seasoning to your own taste.
Peel and core fresh pineapple half; cut into 8 equal slices. Using a stovetop grill pan, grill pineapple slices for 2 to 3 minutes on each side over medium heat until browned. Remove from heat, set aside.Rinse any ice from frozen Alaska pollock under cold water; pat dry with paper towel. Sprinkle jerk seasoning on both sides of each fillet. In a heavy nonstick skillet, heat oil over medium heat; add fillets to pan and cook 3 to 4 minutes, until browned. Shake pan occasionally to keep fish from sticking.