Whisk orange juice, coconut aminos, minced ginger, minced garlic, and arrowroot powder in a small bowl to create the glaze.
Season the cubed chicken breast with sea salt and black pepper.
Heat sesame oil in a large skillet or wok over medium-high heat.
Add chicken to the skillet and cook until golden brown and cooked through, about 5-7 minutes.
Remove chicken from the pan and add broccoli, bell peppers, and snap peas with a splash of water to the same skillet.
Steam-fry the vegetables until they are bright green and tender-crisp.
Return the chicken to the pan and pour the orange glaze over the mixture.
Stir constantly for 1-2 minutes until the sauce thickens and coats everything beautifully.
In a separate pan, lightly sauté the cauliflower rice until heated through and slightly softened.
Serve the orange chicken over the cauliflower rice and garnish with sesame seeds.