1 medium head of cauliflower (about 1 1/4 pounds), cored, cut into 1-inch florets
6 tablespoons olive oil, divided
2 medium onions (about 1/2 pound each), halved lengthwise, cut into 3/4-inch-wide wedges with some core still attached, peeled
2 fresh fennel bulbs (about 1 pound total), halved lengthwise, cut lengthwise into 1/2-inch-wide wedges with some core still attached
8 small garlic cloves, unpeeled
15 fresh marjoram sprigs
Directions
Position rack in center of oven; preheat to 425°F. Toss cauliflower and 2 tablespoons oil in large bowl. Heat heavy large skillet over medium-high heat. Add cauliflower and sauté until beginning to brown, about 5 minutes. Transfer cauliflower to rimmed baking sheet.
Add 2 tablespoons oil to same skillet. Add onion wedges. Cook until browned on 1 side, about 3 minutes. Using spatula, carefully transfer onions to baking sheet with cauliflower, arranging wedges browned side up. Add remaining 2 tablespoons oil to same skillet. Add fennel; sauté until fennel softens slightly and starts to brown, about 5 minutes. Transfer to same baking sheet. Scatter garlic and marjoram over vegetables. Sprinkle with salt and pepper. Roast until vegetables are caramelized, about 25 minutes. Serve hot or at room temperature.
