Pat the chicken breast dry with paper towels, cut into bite-sized pieces, and toss in a bowl with arrowroot powder, sea salt, and black pepper until evenly coated.
Heat the sesame oil in a large non-stick skillet over medium-high heat and sear the chicken pieces until they are golden brown and crispy on all sides.
While the chicken cooks, steam the broccoli florets until they are tender-crisp and vibrant green.
In a separate small pan, lightly sauté the cauliflower rice for 3-5 minutes until heated through and slightly softened.
In a small jar or bowl, whisk together the coconut aminos, honey, minced garlic, and grated fresh ginger to create the teriyaki glaze.
Pour the sauce into the skillet with the crispy chicken, tossing constantly for 1-2 minutes until the glaze thickens and becomes glossy.
Plate the cauliflower rice and top with the glazed chicken and steamed broccoli, drizzling any remaining sauce from the pan over the top.