Cut the chicken breast into bite-sized cubes and place them in a bowl.
Toss the chicken with arrowroot powder, sea salt, and black pepper until evenly coated.
In a small glass jar, whisk together the coconut aminos, rice vinegar, tomato paste, and honey until smooth.
Heat the avocado oil in a large non-stick skillet or wok over medium-high heat.
Add the chicken to the pan and cook for 5-6 minutes, turning occasionally, until the exterior is golden and crispy.
Add the sliced bell peppers, sugar snap peas, and pineapple chunks to the skillet.
Sauté the mixture for 3-4 minutes until the vegetables are tender-crisp and vibrant.
Pour the sauce over the chicken and vegetables, stirring constantly for 1 minute until the sauce thickens and glazes the ingredients.
Serve the stir-fry immediately over the warm cooked white rice.