Preheat oven to 400°
In a large bowl combine broccoli, oil, red pepper flakes, salt and pepper. Toss to coat.
Place broccoli onto a foil or parchment lined baking sheet and roast for 10 minutes in oven.
After 10 minutes sprinkle minced garlic over broccoli. Continue roasting for another 5 minutes or until tender. Don't over cook it-you want it tender crisp.
Sprinkle grated Parmesan over warm broccoli and serve.