Cook the brown rice according to package directions and set aside.
Cut the chicken breast into bite-sized pieces and toss in a bowl with cornstarch, sea salt, and black pepper until evenly coated.
In a small jar or bowl, whisk together the honey, tamari, minced garlic, grated ginger, and sesame oil.
Heat avocado oil in a large skillet over medium-high heat. Add the chicken in a single layer and sear until golden brown and cooked through, about 6-8 minutes.
While the chicken cooks, steam the broccoli florets until tender-crisp and bright green.
Pour the honey-garlic sauce over the cooked chicken in the skillet. Toss constantly for 1-2 minutes until the sauce thickens into a glossy glaze.
Divide the fluffy brown rice into a bowl, top with the glazed chicken and steamed broccoli, and serve immediately.