Preheat your oven to 400°F (200°C) and line a large rimmed baking sheet with parchment paper.
In a small mixing bowl, whisk together the fresh orange juice, honey, tamari, ground ginger, and minced garlic until well combined.
Peel the sweet potato and cut into 1-inch cubes, then place them on the baking sheet along with the broccoli florets.
Drizzle the vegetables with half of the olive oil and season with half of the sea salt and black pepper, tossing to ensure even coating.
Pat the chicken breast dry with a paper towel, rub with the remaining olive oil, sea salt, and black pepper, and place it in the center of the baking sheet.
Brush the chicken breast generously with half of the prepared orange glaze.
Roast for 12 minutes, then remove from the oven to brush the remaining glaze over the chicken and toss the vegetables.
Return to the oven for another 8-12 minutes, or until the chicken reaches an internal temperature of 165°F and the sweet potatoes are tender.
Let the chicken rest for 5 minutes before slicing to keep it juicy, then serve alongside the roasted vegetables.