Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Trim the woody ends off the asparagus and toss the spears on the baking sheet with olive oil, sea salt, and black pepper.
Roast the asparagus for 12-15 minutes until tender and slightly charred at the tips.
While the vegetables roast, dice the chicken breast into bite-sized cubes and toss in a bowl with arrowroot powder until lightly coated.
In a small bowl, whisk together the coconut aminos, honey, minced garlic, and grated fresh ginger to create the teriyaki base.
Heat the sesame oil in a non-stick skillet over medium-high heat and add the chicken, searing until golden brown and cooked through.
Reduce the heat to medium and pour the sauce mixture over the chicken, stirring constantly for 1-2 minutes until the glaze thickens and becomes glossy.
Serve the crispy glazed chicken over the warm brown rice with the roasted asparagus on the side, garnishing with sesame seeds.