Preheat oven to 425°F. Mix Seasoning Mix and oil in small bowl. Place cauliflower in large bowl. Drizzle with oil mixture; toss to coat well.
Spread cauliflower in single layer on foil-lined 15x10x1-inch baking pan sprayed with no stick cooking spray.
Roast 40 minutes or until cauliflower is tender, stirring halfway through cooking.