Dice the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
In a small bowl, whisk together the fresh orange juice, coconut aminos, minced ginger, minced garlic, and arrowroot powder to create the glaze.
Heat the avocado oil in a large skillet or wok over medium-high heat and sear the chicken until golden brown and cooked through.
Add the snap peas and sliced red bell pepper to the skillet, sautéing for 3 minutes until the vegetables are tender-crisp.
Pour the orange glaze into the skillet and stir constantly for 1-2 minutes until the sauce thickens and coats the chicken and vegetables.
In a separate pan, lightly sauté the cauliflower rice for 3-4 minutes until tender and heated through.
Portion the cauliflower rice into a bowl, top with the orange chicken stir-fry, and garnish with sesame seeds and sliced green onions.