Papa Joe recommended this recipe. He made it last week and thought it was great. How could it not be with garlic, olive oil and Parmesan cheese?
Preheat oven to 425°. Cut 1 head cauliflower into florets; toss on a large rimmed baking sheet with 1 sliced medium onion, 4 thyme sprigs, 4 unpeeled garlic cloves, and 3 tablespoons olive oil; season with kosher salt and freshly ground black pepper. Roast, tossing occasionally, until almost tender, 35-40 minutes. Sprinkle with 1/2 cup grated Parmesan, toss to combine, and roast until cauliflower is tender, 10-12 minutes longer.