Preheat your oven to 425°F (220°C).
Wash the broccoli florets and pat them dry.
In a large bowl, combine the broccoli, olive oil, garlic powder, salt, and pepper.
Toss the broccoli until evenly coated with the oil and seasonings.
Spread the broccoli in a single layer on a baking sheet.
Roast in the oven for 20-25 minutes, turning halfway through.
Check for desired crispness; it should be tender and slightly charred.
Remove from the oven and drizzle with lemon juice.
Optional: sprinkle with grated Parmesan cheese before serving.
Serve warm and enjoy!