Preheat oven to 375 degrees F. Place cauliflower florets in a large bowl.
Drizzle olive oil (about a tablespoons or so) on top of the cauliflower and season with spices. With a spatula or your hands, toss the cauliflower until well coated with oil and the spices are evenly distributed.
Spread florets in a single layer on a baking sheet or in a roasting pan. Place in the oven and roast for about 20-30 minutes, turning halfway, until cauliflower can be easily pierced with a fork and is golden brown.