Cut the chicken breast into bite-sized pieces and season with sea salt and black pepper.
In a small bowl, whisk together the tamari, honey, minced ginger, and minced garlic to create the teriyaki sauce.
Heat the sesame oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and cook for 5-6 minutes until browned and cooked through.
Remove the chicken from the pan and set aside, then add the broccoli and red bell peppers to the same skillet.
Sauté the vegetables for 3-4 minutes until tender-crisp and vibrant in color.
Return the chicken to the pan and pour the teriyaki sauce over the mixture, tossing to coat everything evenly.
Simmer for 1-2 minutes until the sauce thickens slightly and glazes the ingredients.
Serve the stir-fry over the cooked brown rice and garnish with sesame seeds.