Cut the chicken breast into bite-sized pieces and season with sea salt and black pepper.
In a small bowl, whisk together the coconut aminos, rice vinegar, honey, grated fresh ginger, minced garlic, red pepper flakes, and arrowroot powder to create the sauce.
Heat the 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, then remove and set aside.
In the same skillet, add the broccoli florets, sliced red bell pepper, and snap peas, sautéing for 3-4 minutes until tender-crisp.
Add the cauliflower rice and cooked brown rice to the skillet, stirring to combine with the vegetables.
Return the chicken to the pan and pour the sauce over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens and coats the ingredients evenly.
Serve immediately while hot and vibrant.