Preheat your oven to 400°F (200°C) and line a large rimmed sheet pan with parchment paper for easy cleanup.
Dice the chicken breast and the peeled sweet potato into uniform 1-inch cubes to ensure they roast at the same rate.
In a small mixing bowl, whisk together the honey, tamari, extra virgin olive oil, and minced garlic until the glaze is well emulsified.
Place the chicken cubes, sweet potato cubes, and broccoli florets onto the prepared sheet pan in a single layer.
Drizzle the honey-garlic glaze evenly over the chicken and vegetables, then sprinkle with the sea salt and black pepper.
Using tongs or clean hands, toss the ingredients until every piece is thoroughly coated in the sauce, then spread them out so they are not crowded.
Roast in the center of the oven for 20 to 25 minutes, or until the chicken is cooked through to 165°F and the sweet potatoes are fork-tender.
Remove from the oven and let rest for 2 minutes so the glaze thickens slightly before serving directly from the pan.