Creating Parmesan-Roasted Cauliflower is quite simple if you follow these clear steps:

1. Preheat Oven: Set your oven to 425°F (220°C).
2. Prepare the Cauliflower: In a large mixing bowl, combine the cauliflower florets with the olive oil, garlic powder, onion powder, salt, and black pepper. Toss well to ensure the florets are evenly coated.
3. Arrange on Baking Sheet: Spread the seasoned cauliflower in a single layer on a baking sheet lined with parchment paper for easy cleanup.
4. Roast: Place the baking sheet in the preheated oven and roast for about 25-30 minutes, stirring halfway through, until the cauliflower is tender and golden brown.
5. Add Parmesan: Remove the baking sheet from the oven. Sprinkle the grated Parmesan cheese over the cauliflower. Return it to the oven and roast for an additional 5 minutes, or until the cheese is melted and slightly crispy.
6. Garnish: Once done, remove from the oven and sprinkle with chopped fresh parsley if using.
7. Serve: Transfer the roasted cauliflower to a serving dish. Serve with lemon wedges on the side, if desired.

These straightforward steps will ensure you achieve the perfect Parmesan-Roasted Cauliflower every time!