Cook the brown rice according to the package instructions until fluffy.
Cut the chicken breast into bite-sized cubes and season evenly with sea salt and black pepper.
In a small bowl, whisk together the coconut aminos, rice vinegar, honey, arrowroot powder, minced ginger, minced garlic, red pepper flakes, and water to create the glaze.
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, approximately 6 minutes.
Add the broccoli florets and sliced red bell pepper to the skillet, sautéing for 3 to 4 minutes until the vegetables are tender-crisp.
Pour the sauce mixture over the chicken and vegetables, stirring constantly for 1 to 2 minutes until the glaze thickens and coats everything beautifully.
Serve the stir-fry immediately over the cooked brown rice and garnish with sliced green onions.