Pat the chicken breast dry with a paper towel, cut into bite-sized pieces, and toss in a bowl with sea salt, black pepper, and arrowroot powder.
In a small jar or bowl, whisk together the honey, tamari, sesame oil, minced garlic, and grated fresh ginger until well combined.
Heat the avocado oil in a large skillet over medium-high heat until shimmering.
Add the chicken to the skillet in a single layer and sear for 5-7 minutes, turning occasionally, until the edges are golden and crispy.
While the chicken cooks, steam the broccoli florets over boiling water for 4-5 minutes until they are tender-crisp and bright green.
Pour the honey-garlic sauce into the skillet with the chicken and stir constantly for 1-2 minutes until the sauce thickens into a glossy glaze.
Assemble the bowls by portioning the warm brown rice and steamed broccoli, then top with the crispy glazed chicken.