Pat the chicken breast dry with a paper towel and cut into 1-inch cubes.
Place chicken in a bowl and toss with arrowroot powder, sea salt, and black pepper until evenly coated.
In a small jar or bowl, whisk together the honey, tamari, and minced garlic until smooth.
Heat the avocado oil in a large non-stick skillet over medium-high heat.
Add the chicken to the skillet in a single layer and sear for 3-4 minutes per side until golden brown and crispy.
While the chicken cooks, steam the broccoli florets in a steamer basket for 4-5 minutes until tender-crisp.
Reduce the skillet heat to low and pour the honey-garlic sauce over the chicken, stirring constantly for 1 minute until the sauce thickens into a glossy glaze.
Remove from heat and drizzle with sesame oil.
Assemble the bowls by placing the cooked brown rice at the base, topped with the glazed chicken and steamed broccoli.