In a small bowl, whisk together the orange juice, tamari, honey, minced ginger, and minced garlic to create the glaze.
Cut the chicken breast into bite-sized pieces and toss in a bowl with arrowroot powder, sea salt, and black pepper until evenly coated.
Heat the sesame oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and cook for 5-6 minutes, stirring occasionally, until the edges are golden and crispy.
Add the broccoli florets and sliced red bell pepper to the skillet, sautéing for an additional 3-4 minutes until the vegetables are tender-crisp.
Pour the orange glaze over the chicken and vegetables, tossing constantly for 1 minute until the sauce thickens and coats everything beautifully.
Serve the crispy orange chicken and vegetables immediately over the warm cooked brown rice.