Dice the chicken breast into bite-sized pieces and season with sea salt and black pepper.
In a small bowl, whisk together the coconut aminos, apple cider vinegar, raw honey, and arrowroot powder to create the sauce.
Heat the sesame oil in a large skillet or wok over medium-high heat.
Add the chicken to the skillet and cook until golden brown and cooked through, about 5-7 minutes, then remove from the pan and set aside.
In the same skillet, add the chopped red onion, bell peppers, and pineapple, sautéing for 3-4 minutes until the vegetables are tender-crisp.
Stir in the minced garlic and grated ginger, cooking for another 30 seconds until fragrant.
Return the chicken to the skillet and pour the sauce over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens and coats the chicken and vegetables evenly.
Serve immediately while hot.