Gather the sauce ingredients; whisk teriyaki sauce, BBQ sauce, and soy sauce in a bowl.
Prepare the veggies:
Cut the veggies: wash the bell peppers and cut into 1-inch pieces. Cut the onion into chunks or wedges. Add the veggies to the prepared sauce.
Prepare the chicken:
Cut the chicken: take your chicken breast filets and cut them into 1-inch pieces. Add the chicken to the bowl with the veggies. Season to taste with salt and pepper.
Time to bake:
Bake the chicken: preheat oven to 375F. Line a rimmed baking sheet with parchment paper. Spread the chicken and veggies evenly across the baking sheet. Bake the chicken for 20 minutes.
Add the pineapple:
Prepare the pineapple: cut the pineapple into chunks and add it across the chicken. Continue to bake for 15 minutes or until the inner temperature of the chicken reaches 165F.
Serve:
Serve your Hawaiian chicken warm with some rice on the side. You can garnish with chopped cilantro or toasted sesame seeds.
Notes
For some spiciness, add a few sliced jalapeno peppers.