Cut the chicken breast into 1-inch bite-sized cubes and place them in a small bowl.
Toss the chicken with cornstarch, sea salt, and black pepper until every piece is evenly coated.
In a small jar or bowl, whisk together the coconut aminos, rice vinegar, honey, minced ginger, and minced garlic to create the sauce.
Heat the avocado oil in a large non-stick skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet in a single layer and cook for 3-4 minutes per side until the edges are golden-brown and crispy.
Remove the chicken from the pan and set aside on a plate.
In the same skillet, add the sliced bell peppers, snap peas, and pineapple chunks, sautéing for 3 minutes until tender-crisp.
Return the chicken to the skillet and pour the sauce over the mixture.
Stir constantly for 1-2 minutes until the sauce thickens and glazes the chicken and vegetables beautifully.
Serve immediately while hot and crispy.