Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper.
Remove the skin from the chicken leg quarter to keep the meal lean, then pat the meat dry with a paper towel.
Dice the sweet potato into half-inch cubes and mince the garlic cloves finely.
In a small bowl, whisk together the olive oil, minced garlic, rosemary, thyme, sea salt, and black pepper.
Place the chicken, diced sweet potatoes, and broccoli florets on the prepared baking sheet.
Drizzle the garlic-herb oil over the chicken and vegetables, tossing the produce and rubbing the chicken to ensure everything is evenly coated.
Spread the ingredients into a single layer, ensuring the chicken has enough space to roast properly.
Bake for 25 to 30 minutes, or until the chicken reaches an internal temperature of 165°F and the sweet potatoes are tender and browned.
Remove from the oven and drizzle the fresh lemon juice over the broccoli and chicken before serving.