Cook the white rice according to package instructions or use pre-cooked rice.
In a small bowl, whisk together tamari, honey, grated fresh ginger, and minced garlic to create the teriyaki sauce.
Cut the chicken breast into 1-inch bite-sized pieces and season with sea salt and black pepper.
Heat the toasted sesame oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and sear until golden brown and cooked through, approximately 5 to 7 minutes.
Remove the chicken from the pan and set it aside on a plate.
Add the broccoli, bell peppers, and snap peas to the same skillet, adding a splash of water if needed to steam-fry until tender-crisp.
Return the cooked chicken to the skillet and pour the prepared teriyaki sauce over the mixture.
Toss everything together for 1 to 2 minutes until the sauce thickens and thoroughly coats the ingredients.
Serve the stir-fry over the warm white rice and garnish with sesame seeds before serving.