Slice the chicken breast into thin, bite-sized strips and season with sea salt and black pepper.
In a small bowl, whisk together the tamari, rice vinegar, honey, minced fresh ginger, and minced garlic to create the stir-fry sauce.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet and sear for 3-4 minutes until golden brown and cooked through; remove the chicken from the pan and set aside.
Add the toasted sesame oil to the same pan, then add the broccoli florets and sliced red bell pepper with a splash of water to help steam.
Sauté the vegetables for 3-5 minutes until they are tender-crisp and bright green.
Return the chicken to the pan and pour the prepared sauce over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens slightly and coats the chicken and vegetables evenly.