Preheat your oven to 400°F and line a large sheet pan with parchment paper for easy cleanup.
Cut the chicken breast into bite-sized 1-inch cubes and mince the garlic and ginger.
In a small bowl, whisk together the honey, tamari, toasted sesame oil, minced garlic, and grated ginger until well combined.
Place the chicken cubes and broccoli florets on the sheet pan, then season with sea salt and black pepper.
Drizzle half of the honey-garlic sauce over the chicken and broccoli, tossing well to ensure every piece is coated.
Spread the ingredients into a single layer and roast for 15 to 18 minutes until the chicken is cooked through and the broccoli has charred, crispy edges.
While the chicken roasts, warm your pre-cooked brown rice in a small saucepan or microwave.
Remove the pan from the oven, drizzle the remaining sauce over the hot chicken and broccoli, and serve immediately over the rice garnished with sesame seeds.