In a small bowl, whisk together the coconut aminos, pineapple juice, rice vinegar, honey, and sesame oil to create the stir-fry sauce.
Cut the chicken breast into bite-sized pieces and season with sea salt and black pepper.
Heat the avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet and sear until golden brown and cooked through, approximately 5 to 7 minutes, then remove and set aside.
In the same skillet, add the sliced bell peppers, broccoli, grated ginger, and minced garlic, sautéing until the vegetables are tender-crisp and fragrant.
Return the cooked chicken to the pan and pour the prepared sauce over the mixture.
Toss everything constantly for 1 to 2 minutes until the sauce thickens and coats the chicken and vegetables beautifully.
Serve the stir-fry immediately over the warm cooked brown rice.