In a small bowl, whisk together the tamari, honey, grated fresh ginger, minced garlic, and arrowroot powder until the mixture is smooth.
Cut the chicken breast into bite-sized cubes and season evenly with sea salt and black pepper.
Heat the sesame oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and sear for 5-6 minutes, stirring occasionally, until golden brown and cooked through.
Add the broccoli florets and sliced red bell pepper to the skillet, sautéing for an additional 3-4 minutes until the vegetables are tender-crisp.
Pour the prepared glaze over the chicken and vegetables.
Stir constantly for 1-2 minutes until the sauce thickens and coats the ingredients in a glossy finish.
Remove from heat, garnish with sesame seeds, and serve warm.