Preheat Your Oven: Set your oven to 425°F (220°C). A hot oven is crucial for achieving that perfect caramelization.
Prepare the Broccoli: Wash and thoroughly dry the broccoli. Cut it into uniform florets to ensure even cooking. Don't discard the stems – peel and slice them into coins for roasting as well.
Season the Broccoli: In a large bowl, toss the broccoli florets and stems with olive oil, minced garlic, salt, and pepper. Make sure each piece is well-coated.
Spread on a Baking Sheet: Arrange the broccoli in a single layer on a baking sheet. Avoid overcrowding, as this can lead to steaming instead of roasting.
Roast the Broccoli: Place the baking sheet in the preheated oven. Roast for 20-25 minutes, flipping halfway through, until the edges are crisp and browned, and the stems are tender.
Add Finishing Touches: Once out of the oven, immediately zest some lemon over the hot broccoli, sprinkle with grated Parmesan cheese, or add a pinch of red pepper flakes for a kick.
Serve and Enjoy: Serve the roasted broccoli hot as a side dish or add it to salads, pasta, or grain bowls.