Heat the oil in a large pan over medium high heat. Season the chicken with salt and pepper to taste and add to the pan.
Cook the chicken for 6-8 minutes, stirring occasionally, until chicken is cooked through. Otherwise, just slap the rotisserie chicken in around step 5.
Add the red bell pepper, pineapple chunks, and diced jalapeños to the pan and cook for 4-5 minutes or until tender.
Add the ginger and garlic and cook for 30 seconds more.
In a small bowl, whisk together the pineapple juice, soy sauce, chicken broth, hoisin sauce and brown sugar.
Add the sauce mixture to the pan and bring to a simmer.
Mix the corn starch with 2 tablespoons of cold water; stir until smooth.
Add the cornstarch mixture to the pan and stir to combine. Bring to a boil and cook for 1 minute or until sauce has just thickened.
Sprinkle with sesame seeds and green onions, then serve.
Note: Cashews can be added anytime!