Dice the chicken breast into one-inch cubes and place them in a bowl.
Toss the chicken with arrowroot powder, sea salt, and black pepper until evenly coated.
In a small jar, whisk together the coconut aminos, rice vinegar, honey, minced garlic, and grated ginger to create the sauce.
Heat the avocado oil in a large non-stick skillet or wok over medium-high heat.
Add the chicken to the pan and sear for 5-6 minutes, turning occasionally, until the exterior is golden and crispy.
Add the sliced bell peppers and pineapple chunks to the skillet, sautéing for an additional 3 minutes until the peppers are tender-crisp.
Pour the sauce over the mixture and stir constantly for 1-2 minutes until the glaze thickens and coats every piece.
Remove from heat and serve immediately while the chicken maintains its crisp texture.