Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
Pat the chicken breast completely dry with paper towels to ensure the skin gets crispy during roasting.
In a small bowl, combine the dried oregano, sea salt, black pepper, and lemon zest.
Mince the garlic and toss it in a bowl with the broccoli florets and half of the olive oil.
Rub the chicken breast with the remaining olive oil and then coat thoroughly with the herb and zest mixture.
Place the chicken and broccoli on the prepared baking sheet, ensuring the broccoli is spread in a single layer.
Roast for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the broccoli is tender with charred edges.
While the chicken rests for 5 minutes, fluff your pre-cooked white rice in a serving bowl.
Slice the chicken and arrange it over the rice along with the roasted broccoli.
Drizzle the fresh lemon juice over the entire plate before serving for a bright, clean finish.