Preheat the oven to 375℉.
Spread the trimmed broccolini in a single layer on a baking sheet pan. Don’t overcrowd the pan to prevent the broccolini from steaming instead of roasting. If needed use two sheet pans. Add the garlic.
Drizzle with olive oil, sprinkle with the lemon zest and season with salt and pepper.
Using kitchen tongs, gently toss the florets making sure everything is evenly coated, especially the broccolini tips. You want the tips to roast and get a bit crispy.
Roast for 15 minutes or until the broccolini is crisp-tender and is beginning to char.
Remove from the oven, drizzle with the lemon juice and sprinkle with Paresan. Serve.