In a small bowl, whisk together the coconut aminos, honey, arrowroot powder, water, and red pepper flakes until smooth.
Season the chicken breast pieces evenly with sea salt and black pepper.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet and sear for 5-6 minutes, turning occasionally, until golden brown and cooked through.
Remove the chicken from the skillet and set aside, then add the broccoli florets and red bell pepper to the same pan.
Sauté the vegetables for 3-4 minutes until they are tender-crisp and vibrant in color.
Stir in the minced garlic and ginger for 30 seconds, then return the chicken to the pan and pour in the sauce.
Toss everything together for 1-2 minutes until the sauce thickens into a glossy glaze, then serve over warm brown rice topped with sesame seeds and green onions.