Here is the method to prepare roasted cauliflower.
1 head cauliflower (about 2 pounds), cut into bite-size florets (about 8 cups)
1/4 cup extra-virgin olive oil
5 cloves garlic, roughly chopped
1/4 teaspoon crushed red pepper
2 teaspoons kosher salt
2 teaspoons roughly chopped fresh thyme leaves
Preheat the oven to 200 degrees C.
Toss the cauliflower with the olive oil, garlic, and red pepper on a baking sheet; sprinkle with the salt and thyme and toss again. Roast until golden and tender, about 20 minutes. Transfer to a serving bowl and serve.