In a small bowl, whisk together the tamari, raw honey, minced fresh ginger, and minced garlic to create the teriyaki glaze.
Dice the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
Heat the toasted sesame oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet and cook until golden brown and cooked through, approximately 6 to 8 minutes.
Remove the chicken from the pan and set aside; add the broccoli florets, bell peppers, and carrots to the same skillet.
Stir-fry the vegetables for 4 to 5 minutes until they are tender-crisp and vibrant in color.
Return the chicken to the skillet and pour the prepared teriyaki glaze over the mixture.
Toss everything together for 1 to 2 minutes until the sauce has thickened and coated the chicken and vegetables.
Serve the stir-fry immediately over the warm, cooked brown rice.