Preheat oven to 400F. Wash and trim the broccolini and cut in portions for the larger pieces. Lay on a rimmed baking sheet. Mix the garlic with the olive oil. Toss the broccolini with the olive mixture. Sprinkle with Kosher salt and pepper. Roast for 20-25 min. or until tender and crispy. Check after 15 min. and toss if necessary.