In a mixing bowl, thoroughly coat the chicken breasts with jerk seasoning followed by a drizzle of olive oil. Massage the seasoning into the chicken to ensure it’s well coated. For the best flavor, allow the chicken to marinate for at least 30 minutes, or refrigerate for up to 4 hours.
Preheat your grill or a stovetop grill pan over medium-high heat. Once hot, place the marinated chicken on the grill and cook for approximately 6-7 minutes per side, or until the chicken is well-cooked and juices run clear. After cooking, let the chicken rest for a few minutes, then slice into thin strips.
In a separate mixing bowl, combine the diced pineapple, shredded red cabbage, sliced red onion, and chopped cilantro. Drizzle with fresh lime juice and add a pinch of salt. Toss all the ingredients together until they are well mixed and coated.
To warm the tortillas, place them on a skillet or grill for about 30 seconds on each side, just until they become soft and pliable.
On each warmed tortilla, place a few strips of jerk chicken, and then add a generous scoop of the pineapple slaw on top. If you like a little heat, sprinkle on some sliced jalapeños.
Serve the tacos immediately, garnishing with extra cilantro or a wedge of lime on the side for an added burst of flavor.