In a small bowl, whisk together the coconut aminos, apple cider vinegar, tomato paste, honey, and arrowroot powder until smooth.
Heat the avocado oil in a large skillet or wok over medium-high heat.
Season the diced chicken breast with sea salt and black pepper, then add it to the skillet.
Sear the chicken for 5-6 minutes, stirring occasionally, until golden brown and cooked through.
Add the sliced bell peppers, red onion, and pineapple chunks to the pan, sautéing for 3-4 minutes until the vegetables are tender-crisp.
Stir in the minced garlic and grated fresh ginger, cooking for just 30 seconds until the aromatics are fragrant.
Pour the prepared sauce over the chicken and vegetables, tossing constantly for 1-2 minutes until the glaze thickens and coats everything beautifully.
Serve immediately while hot and the flavors are bright.