Pat the chicken dry with paper towels, dice into one-inch cubes, and toss in a bowl with arrowroot powder, sea salt, and black pepper until evenly coated.
In a small glass jar or bowl, whisk together the honey, tamari, toasted sesame oil, minced garlic, and grated ginger to create the glaze.
Heat the avocado oil in a large skillet over medium-high heat, then add the chicken in a single layer, searing until golden brown and crispy on all sides.
While the chicken cooks, steam the broccoli florets and sliced red bell pepper in a steamer basket for 4-5 minutes until they are tender-crisp and bright.
Reduce the skillet heat to low, pour the honey-garlic sauce over the chicken, and stir constantly for 1-2 minutes until the sauce becomes thick and glossy.
Divide the cooked brown rice between bowls, top with the glazed chicken and steamed vegetables, and finish with a sprinkle of sesame seeds.