Prepare the sauce by whisking coconut aminos, honey, grated ginger, minced garlic, arrowroot powder, and water in a small bowl until smooth.
Season the diced chicken breast with sea salt and black pepper.
Heat toasted 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, about 5-7 minutes.
Remove chicken from the pan and set aside; add the broccoli florets and matchstick carrots with a splash of water.
Cover and steam the vegetables for 3 minutes until they reach a vibrant green and tender-crisp texture.
Return the chicken to the pan and pour the prepared sauce over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens and coats the chicken and vegetables beautifully.
Serve the teriyaki mixture over the warm cooked brown rice and garnish with sesame seeds.