Chop cauliflower head into large chunks.
Toss 2 tbsp olive oil, 1 tsp salt, 1 tsp black pepper, and 2 tsp curry powder into a large mixing bowl with your chopped cauliflower.
Spray baking tray lighting with cooking spray of choice or rub with a little olive oil.
Set broiler on High, and place rack 8-10 inches from the top of the oven.
Check on roasting cauliflower after 15 minutes.
Use a spatula to gently toss cauliflower to ensure it is not sticking to baking tray. Edges should be browning.
Remove from oven 5 minutes later, or after a total of 20 minutes in oven to avoid burning or dehydration. *You may keep it in for another 5 minutes longer but watch it. *If you want a crispier roast, try using the air fryer method below.