01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper.
02 - In a large bowl, toss broccoli florets and minced garlic with olive oil, kosher salt, black pepper, and red pepper flakes until evenly coated.
03 - Spread seasoned broccoli in a single layer on the prepared baking sheet.
04 - Roast for 18 to 20 minutes, stirring halfway through, until broccoli is crisp-tender with caramelized edges.
05 - Remove from oven and immediately sprinkle with freshly grated Parmesan. Toss gently to allow cheese to melt slightly from residual heat.
06 - Serve hot or at room temperature as desired.