Preheat the oven: Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with olive oil or non-stick spray.
- Prepare the chicken: Place the chicken breasts in the prepared baking dish. Season both sides with garlic powder, ginger (if using), and black pepper.
- Make the sauce: In a small bowl, whisk together the teriyaki sauce, honey, soy sauce, and the reserved pineapple juice. Mix well to combine.
- Add the pineapple: Scatter the drained pineapple chunks around the chicken breasts in the baking dish. Pour the sauce evenly over the chicken and pineapple, ensuring everything is coated well.
- Bake: Cover the baking dish with aluminum foil and bake for 25-30 minutes, or until the chicken is cooked through and the internal temperature reaches 165°F (75°C). For the last 10 minutes, remove the foil to allow the sauce to thicken slightly and the pineapple to caramelize.
- Serve: Remove the dish from the oven and let the chicken rest for a few minutes. Garnish with sesame seeds and chopped green onions for added flavor and crunch. Serve with rice or your favorite side dish.