Parmesan Roasted Cauliflower

• 1 head cauliflower
• 1 sliced medium onion
• 4 thyme sprigs
• 4 unpeeled garlic cloves
• 3 tablespoons olive oil
• Kosher salt
• Freshly ground black pepper
• 1/2 cup grated Parmesan

Directions:

1. Preheat oven to 425°F.
2. Cut 1 head cauliflower into florets;
3. toss on a large rimmed baking sheet with 1 sliced medium onion, 4 thyme sprigs, 4 unpeeled garlic cloves, and 3 tablespoons olive oil;
4. season with kosher salt and freshly ground black pepper.
5. Roast, tossing occasionally, until almost tender, 35-40 minutes.