how to roast cauliflower
Preheat oven to 375 degrees. Place cauliflower in a large mixing bowl. Pour on enough olive oil to coat (a few tablespoons). ...    Lay cauliflower pieces out on a baking sheet. Drizzle any remaining oil from the bowl on top. Bake, turning once, until caramelized on edges and tender, 25 to 30 minutes.