Preheat your oven to 400°F and line a baking sheet with parchment paper.
Cut the chicken breast into 1-inch cubes and season evenly with sea salt and black pepper.
In a small bowl, whisk together the fresh orange juice, coconut aminos, honey, minced ginger, minced garlic, and arrowroot powder until smooth.
Place the chicken cubes in a bowl and toss with half of the orange sauce until well coated.
Spread the chicken onto the prepared baking sheet and bake for 15-18 minutes until cooked through and slightly golden.
While the chicken bakes, steam the broccoli florets and sliced red bell pepper until crisp-tender.
Heat the sesame oil in a skillet over medium heat and sauté the cauliflower rice for 3-5 minutes until tender.
Pour the remaining orange sauce into a small saucepan over medium heat, stirring constantly until it thickens into a glossy glaze.
Toss the baked chicken and steamed vegetables in the thickened glaze.
Serve the glazed chicken and vegetables over the cauliflower rice, garnished with sesame seeds and sliced green onions.