In a small bowl, whisk together the orange juice, orange zest, tamari, honey, grated ginger, minced garlic, and arrowroot powder to create the glaze.
Season the diced chicken breast evenly with sea salt and black pepper.
Heat the toasted sesame 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 5-6 minutes.
Add the broccoli florets, snap peas, and sliced red bell pepper to the skillet, sautéing for 3-4 minutes until the vegetables are tender-crisp.
Pour the orange glaze over the chicken and vegetables, stirring constantly for 1 minute until the sauce thickens and becomes glossy.
While the stir-fry finishes, lightly steam the cauliflower rice in a separate pan with a splash of water until tender.
Serve the orange chicken and vegetable mixture immediately over the warm cauliflower rice.