On a large baking sheet, drizzle the broccoli florets with the olive oil. Season generously with garlic powder, salt, and pepper. Use your hands to mix, making sure the broccoli florets are thoroughly coated.
Method
Preheat the oven to 450°F.
Bake for 15 to 20 minutes, mixing with a spatula halfway through the cooking time.
Pour the lemon juice over the roasted broccoli, toss, and serve.