Cook 1 chicken breast. Place in the refrigerator to chill. Once chilled, cut into bite-sized cubes.
In a large bowl, combine cubed chicken, ½ c green onions, 1 large pineapple, and 1 small red pepper.
In a small bowl, whisk together 1 c mayonnaise, ½ tsp crushed red pepper, ½ tsp ginger, and 1 tsp salt. Whisk in 1 tbsp sesame oil.
Add ½ of the dressing mixture to the chicken; place in the refrigerator to chill, reserving the remainder.
Once chilled, serve with the remaining dressing and ½ c cashews.