In a small bowl, whisk together the orange juice, coconut aminos, sesame oil, arrowroot powder, grated ginger, and minced garlic to create the glaze.
Cut the chicken breast into bite-sized cubes and season evenly with sea salt and black pepper.
Heat the avocado oil in a large skillet over medium-high heat until shimmering.
Add the chicken cubes to the skillet and sauté until golden brown and cooked through, approximately 6 to 8 minutes.
While the chicken is cooking, steam the broccoli florets in a steamer basket over boiling water for 4 to 5 minutes until bright green and crisp-tender.
Once the chicken is cooked, pour the orange glaze mixture into the skillet.
Stir the chicken constantly for 1 to 2 minutes as the sauce simmers and thickens into a glossy coating.
Divide the steamed broccoli between plates, top with the glazed chicken, and garnish with sesame seeds before serving.