01 -
Preheat oven to 220°C. Line a baking sheet with parchment paper.
02 -
Arrange broccolini in a single layer on the prepared baking sheet. Drizzle with 2 tablespoons olive oil and toss to coat thoroughly. Sprinkle with kosher salt, black pepper, and red pepper flakes if using.
03 -
Roast for 10–15 minutes, flipping the broccolini halfway through, until tender with lightly browned, crispy tips.
04 -
While roasting, whisk together remaining 1 tablespoon olive oil, minced garlic, lemon zest, and lemon juice in a small bowl.
05 -
Remove broccolini from oven. Drizzle immediately with the lemon-garlic mixture and toss to evenly coat.
06 -
Transfer broccolini to a serving platter. Top with freshly grated Parmesan cheese and serve hot.