Cook rice for serving, if desired.
In a bowl or large glass measuring cup combine the ingredients for the sauce. Whisk together the vegetable broth, pineapple juice, soy sauce, cooking sherry, honey, ginger, garlic, cornstarch, and sesame oil.
Heat a large skillet or wok over high heat. Add 1 tablespoon sesame oil and once hot add the cashews along with 1/4 cup of the sauce. Cook 1-2 minutes or until the cashews are lightly toasted and caramelized. Remove the cashews to a plate.
Add the broccoli, carrots, peppers, and cornstarch to skillet. Stir fry the veggies for 5 minutes. Add the zucchini, bok choy, and pineapple and stir fry for 5-10 more minutes. Add the sauce and cook until the sauce thickens and coats the veggies and the pineapple is beginning to caramelize, about 3 minutes.
Place rice in a bowl and top with veggies. Sprinkle caramelized cashews, green onions, and toasted sesame seeds over top. Serve immediately.