In a medium mixing bowl, whisk together teriyaki sauce, soy sauce, honey, grated ginger, and minced garlic. Add the chicken thighs to the bowl, making sure they are well-coated in the marinade. Let marinate for at least 30 minutes (or up to 2 hours in the refrigerator for deeper flavor).
Heat sesame oil in a large skillet over medium-high heat. Once hot, add the marinated chicken thighs and cook for about 6-7 minutes on each side, or until they are nicely browned and fully cooked (internal temperature should reach 165°F/75°C).
Once the chicken is done, remove it from the skillet and let it rest for a minute. Add the sliced red bell pepper and fresh pineapple chunks to the skillet. Sauté for about 3-4 minutes, or until the bell peppers are slightly tender.
Return the chicken to the skillet and pour any remaining marinade over the chicken and vegetables. Stir to coat everything in the sauce and heat through for an additional 2-3 minutes.
Serve the pineapple teriyaki chicken over a bed of jasmine rice. Garnish with chopped green onions, sesame seeds, and extra pineapple chunks on the side.
Notes
Marinate the chicken for up to 2 hours for deeper flavor.