Cut the chicken breast into bite-sized pieces and toss in a bowl with arrowroot powder, garlic powder, ground ginger, sea salt, and black pepper until coated.
In a small jar, whisk together the coconut aminos, fresh orange juice, and orange zest to create the glaze.
Heat the avocado oil in a large skillet over medium-high heat and sear the chicken until golden brown and cooked through, then remove from the pan and set aside.
In the same skillet, add the sesame oil, cauliflower rice, brown rice, frozen peas, and diced carrots, sautéing for 3 minutes until the vegetables are tender.
Push the rice mixture to one side of the pan, crack the egg into the empty space, and scramble it until fully set before folding it into the rice.
Return the cooked chicken to the skillet, pour the orange glaze over the top, and toss everything together for 1 minute until the sauce thickens and smells fragrant.
Transfer to a bowl and garnish with freshly sliced green onions before serving.