Preheat your oven to 220°C (425°F) and line a baking sheet with parchment paper.
Cut the broccoli into even bite-sized florets and pat them dry thoroughly to remove excess moisture, which helps achieve crispy edges.
In a mixing bowl, toss the broccoli florets with olive oil, minced garlic, salt, and freshly cracked black pepper, making sure each piece is well coated.
Spread the seasoned broccoli in a single layer on the prepared baking sheet, giving space between florets to promote even browning.
Roast the broccoli in the oven for 15-20 minutes, shaking the tray or turning the florets halfway through to ensure even caramelization and crispy edges.
Once the edges are deeply golden and slightly charred, remove the tray from the oven and sprinkle the hot broccoli generously with freshly grated Parmesan cheese.
Toss the broccoli gently to coat with the cheese, allowing it to melt into the warm florets. Add lemon zest for a bright finish if desired.
Let the broccoli rest for 2-3 minutes so the flavors meld and the cheese sets slightly before serving.
Serve immediately, garnished with extra Parmesan or a squeeze of lemon if you like. Enjoy the crispy, smoky, cheesy bites!