My go-to method for cooking chicken to include in recipes is to pan-fry frozen chicken tenders. To do this, heat about a tablespoon of vegetable oil in a skillet for 1-2 minutes. Add the frozen tenders and cook 7-8 minutes per side, until no pink remains. You can also use shredded rotisserie chicken.
Different brands have different formulas for Jamaican jerk seasoning, so the spice level may vary from one brand to another. I recommend starting with less and adding more to taste. I chose McCormick because several other versions listed sugar as the first ingredient, whereas it is the last ingredient in the McCormick blend.