Preheat your oven to 425°F (220°C). This high temperature helps achieve a crispy exterior while keeping the cauliflower tender on the inside.

Remove the leaves and stem from the cauliflower head. Cut the cauliflower into florets by carefully slicing through the stem and breaking the head into smaller pieces.

Place the cauliflower florets on a baking sheet. Drizzle olive oil over the cauliflower and toss to coat evenly. Season with salt and pepper to taste. If desired, you can add other seasonings like garlic powder, paprika, or cumin for extra flavor.

Arrange the seasoned cauliflower in a single layer on the baking sheet. This ensures even cooking and helps the cauliflower develop a nice roast.

Place the baking sheet in the preheated oven and roast the cauliflower for 20-25 minutes or until it's tender and has a beautiful golden-brown color. You can flip the florets halfway through the cooking time for even browning.

Once roasted to your liking, remove the cauliflower from the oven. Garnish with fresh herbs like parsley or thyme, if desired, for a burst of freshness. Serve hot as a side dish or a delicious snack.