An Indian-inspired spice blend adds a warm hue and gives this vegetable dish an exotic taste.
Preheat oven to 375 degrees. Coat a rimmed baking sheet with cooking spray. In a large bowl, stir together oil, mustard seeds, cumin seeds, curry powder, and salt. Add the cauliflower, tossing to coat thoroughly with spice mixture.
Arrange cauliflower in a single layer on prepared sheet. Roast until florets are browned on bottom and tender when pierced with the tip of a paring knife, about 35 minutes. Serve hot.