Preheat oven to 400⁰ F.
Spray a baking sheet with cooking spray.
Toss cauliflower in 2 tablespoons olive oil and season with salt and white pepper. Lay out on the baking sheet.
Roast for approximately 7-10 minutes, or just until beginning to brown and a knife can be easily inserted into the stems.
Remove from oven and cool completely.