In a small bowl, whisk together the fresh orange juice, orange zest, coconut aminos, rice vinegar, honey, grated ginger, minced garlic, and arrowroot powder to create the glaze.
Dice the chicken breast into bite-sized pieces and season evenly with sea salt and black pepper.
Heat the avocado oil in a large skillet over medium-high heat and add the chicken, searing until golden brown and cooked through, about 6-8 minutes.
While the chicken is cooking, place the broccoli florets in a steamer basket over boiling water and steam for 4-5 minutes until they are bright green and tender.
Pour the orange glaze mixture into the skillet with the chicken, stirring constantly for 1-2 minutes until the sauce thickens into a glossy coating.
Arrange the cooked brown rice on a plate, top with the glazed orange chicken, and serve alongside the steamed broccoli.