Pat the chicken breast dry with paper towels and cut into bite-sized cubes.
Place chicken in a bowl and toss with arrowroot powder, sea salt, and black pepper until each piece is evenly coated.
In a small glass jar or bowl, whisk together the tamari, honey, grated fresh ginger, minced garlic, and sesame oil until well combined.
Heat the avocado oil in a large non-stick skillet over medium-high heat. Once shimmering, add the chicken in a single layer.
Sear the chicken for 3-4 minutes per side until golden brown and crispy, then remove from the pan and set aside.
In the same pan or using a steamer basket, steam the broccoli florets and shelled edamame for 4-5 minutes until bright green and tender-crisp.
Return the chicken to the skillet and pour the tamari sauce over the top, tossing constantly for 1 minute until the sauce thickens into a glossy glaze.
Divide the warm cooked brown rice into a bowl and top with the glazed chicken, broccoli, and edamame.