In a small bowl, whisk together the fresh orange juice, tamari, honey, grated ginger, minced garlic, and arrowroot powder to create the glaze.
Cut the chicken breast into bite-sized cubes and season evenly with sea salt and black pepper.
Heat the avocado 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 skillet and set aside; add the broccoli, sliced bell peppers, and snap peas to the same pan with a tablespoon of water.
Steam-fry the vegetables for 3 to 4 minutes until they are tender-crisp and bright green.
Return the cooked chicken to the skillet and pour the orange glaze over the chicken and vegetable mixture.
Stir constantly for 1 to 2 minutes until the sauce thickens and coats the ingredients in a glossy finish.
Garnish with sesame seeds and serve immediately.