Slice the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
In a small glass bowl, whisk together the tamari, honey, toasted sesame oil, minced fresh ginger, and minced garlic to create the glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet and sear until golden brown and cooked through, approximately 5 to 6 minutes.
Remove the cooked chicken from the skillet and set it aside on a plate.
Add the broccoli florets, sliced red bell pepper, and snap peas to the same skillet, stir-frying for 3 to 4 minutes until they are tender-crisp.
Return the chicken to the skillet and pour the prepared tamari glaze over the chicken and vegetables.
Toss everything together for 1 to 2 minutes until the sauce has thickened slightly and coats all ingredients beautifully.
Serve the hot stir-fry immediately over the portion of warm cooked brown rice.