Cut the chicken breast into bite-sized pieces and pat thoroughly dry with a paper towel.
In a bowl, toss the chicken with arrowroot powder, sea salt, and black pepper until evenly coated.
Heat avocado oil in a large skillet or wok over medium-high heat until shimmering.
Add the chicken to the skillet in a single layer and sear for 3-4 minutes per side until golden brown and crispy, then remove and set aside.
Add the sliced bell peppers and snap peas to the same skillet, sautéing for 3 minutes until tender-crisp.
In a small jar, whisk together the coconut aminos, rice vinegar, raw honey, minced ginger, and minced garlic.
Return the chicken to the pan along with the pineapple chunks and pour the sauce over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens and coats the chicken beautifully.
Steam the cauliflower rice in a separate pan or microwave until tender.
Serve the crispy chicken and vegetable mixture immediately over the warm cauliflower rice.