Cut the chicken breast into bite-sized pieces and season with sea salt and black pepper.
In a small bowl, whisk together the orange juice, coconut aminos, rice vinegar, honey, arrowroot powder, minced ginger, and minced garlic to create the glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and cook until browned and cooked through, about 5-6 minutes.
Remove the chicken from the pan and set aside. Add the broccoli florets and sliced bell peppers to the same skillet with a splash of water, covering for 2 minutes to steam-soften.
Remove the lid and sauté the vegetables for another 2 minutes until they are tender-crisp.
Add the chicken back into the skillet and pour the orange glaze over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens and coats the chicken and vegetables evenly.
Garnish with sesame seeds before serving.