Cut the chicken breast into 1-inch bite-sized cubes and place them in a small bowl.
Season the chicken with sea salt and black pepper, then sprinkle with arrowroot powder, tossing until each piece is evenly coated.
In a small jar or bowl, whisk together the tamari, orange juice, honey, and sesame oil to create the glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Add the chicken to the hot skillet in a single layer and sear for 3-4 minutes per side until golden brown and crispy.
Add the broccoli florets and sliced red bell pepper to the skillet, stir-frying for 3 minutes until the vegetables are tender-crisp.
Stir in the minced ginger and garlic, cooking for 30 seconds until fragrant.
Pour the orange glaze over the chicken and vegetables, tossing constantly for 1-2 minutes until the sauce thickens and coats everything beautifully.
Remove from heat and serve immediately.