Preheat your oven to 220°C (430°F). Line a baking sheet with parchment paper or a silicone mat to prevent sticking.
Cut the broccoli into even-sized florets, about 2-3 inches each, to ensure they roast uniformly.
In a large bowl, toss the broccoli with olive oil, minced garlic, and a generous pinch of sea salt until the florets are evenly coated and fragrant.
1 head broccoli
Spread the coated broccoli in a single layer on the prepared baking sheet, making sure not to crowd the pan for even roasting.
Roast in the oven for 20-25 minutes, shaking the pan or flipping the florets halfway through, until edges are crispy and golden with a smoky aroma.
Remove the broccoli from the oven and immediately sprinkle with freshly grated Parmesan cheese, tossing gently to coat and allow the cheese to melt into the hot florets.
1 head broccoli
If desired, sprinkle lemon zest and freshly cracked black pepper over the top for extra brightness and flavor.
1 head broccoli
Let the roasted broccoli sit for a couple of minutes so flavors meld and the cheese sets slightly. Serve immediately while hot and crispy.