Pat the chicken breast dry with a paper towel and cut into 1-inch uniform cubes.
In a medium bowl, toss the chicken cubes with arrowroot powder, sea salt, and black pepper until each piece is lightly and evenly coated.
In a small glass jar or bowl, whisk together the honey, tamari, minced garlic, and grated fresh ginger to create the stir-fry 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 sear for 5-6 minutes, turning occasionally, until the edges are crispy and golden brown.
Add the broccoli florets and sliced red bell pepper to the skillet, sautéing for an additional 3-4 minutes until the vegetables are tender-crisp.
Pour the honey-garlic sauce over the chicken and vegetables, tossing constantly for about 60 seconds until the glaze thickens and coats every piece perfectly.
Remove from heat immediately and serve warm.