Pat the chicken breast dry with paper towels and cut into bite-sized pieces.
In a small 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.
Add the chicken to the skillet and sear until golden brown and cooked through, approximately 5-6 minutes, then remove chicken and set aside.
Add the broccoli, bell pepper, and sugar snap peas to the same skillet with one tablespoon of water; cover with a lid for 2 minutes to steam-cook the vegetables.
While vegetables steam, whisk together the honey, tamari, minced garlic, and grated ginger in a small jar.
Remove the lid, return the chicken to the pan, and pour the honey-garlic sauce over the mixture.
Toss everything together for 1-2 minutes until the sauce thickens into a glossy glaze that coats every piece.
Serve immediately garnished with sesame seeds and thinly sliced green onions.