In a small bowl, whisk together the orange juice, orange zest, tamari, rice vinegar, honey, minced ginger, minced garlic, and arrowroot powder until smooth.
Season the cubed chicken breast with sea salt and black pepper.
Heat avocado oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and sauté until golden brown and cooked through, then remove the chicken and set aside.
Add the broccoli, sliced bell pepper, and sugar snap peas to the same skillet, sautéing for 3-4 minutes until they are bright and tender-crisp.
Return the chicken to the skillet and pour the orange sauce over the mixture.
Stir constantly for 1-2 minutes until the glaze thickens and beautifully coats the chicken and vegetables.
In a separate pan, lightly sauté the cauliflower rice for 3 minutes until tender.
Serve the glossy orange chicken stir-fry over the bed of cauliflower rice.