Cut the chicken breast into bite-sized cubes and season evenly with sea salt and black pepper.
In a small bowl, whisk together the orange juice, coconut aminos, honey, and arrowroot powder until the powder is fully dissolved.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and sear for 5-6 minutes, turning occasionally, until golden brown and cooked through.
Remove the chicken from the pan and set aside on a plate.
Add the broccoli florets and sliced bell peppers to the same pan with two tablespoons of water; cover with a lid to steam for 3 minutes until tender-crisp.
Remove the lid and stir in the minced ginger and garlic, sautéing for 30 seconds until fragrant.
Return the cooked chicken to the pan and pour the orange sauce mixture over the ingredients.
Toss everything together for 1-2 minutes until the sauce thickens into a glossy glaze that coats the chicken and vegetables.
Garnish with sesame seeds and serve immediately.