Cut the chicken breast into 1-inch bite-sized cubes and season evenly with sea salt and black pepper.
In a small mixing bowl, whisk together the orange juice, coconut aminos, honey, grated fresh ginger, minced garlic, and arrowroot powder until smooth.
Heat the avocado oil in a large non-stick skillet over medium-high heat.
Add the chicken cubes to the skillet and sauté for 6-8 minutes, turning occasionally, until golden brown and cooked through.
While the chicken is cooking, place the broccoli florets in a steamer basket over boiling water and steam for 4-5 minutes until tender-crisp and bright green.
Lightly steam or sauté the cauliflower rice in a separate pan until softened, about 3-4 minutes.
Reduce the skillet heat to medium and pour the orange sauce mixture over the chicken.
Stir the chicken constantly for 1-2 minutes as the sauce bubbles and thickens into a glossy glaze.
Remove from heat and stir in the toasted sesame oil for an aromatic finish.
Serve the glazed chicken over the cauliflower rice with the steamed broccoli on the side.