Prepared in 10 minutes or less plus 25 minutes to simmer.
Preheat oven to 425°F.
Toss cauliflower with oil, garlic, salt, and pepper in a large bowl.
Spread evenly in 2 shallow baking pans and roast in upper and lower thirds of oven, stirring occasionally, until golden, 25 to 30 minutes.
Serve immediately. Serves 8.