Start by preheating your oven to 425°F (220°C) or Air Fryer at 400°F (200°C).
Wash the broccoli thoroughly under cold water. Pat it dry with a clean kitchen towel or paper towels to remove excess moisture.
In a large mixing bowl, combine the broccoli florets, olive oil, garlic powder, and a generous pinch of salt. Toss everything together until the florets are evenly coated.
Spread the broccoli in a casserole. Avoid overcrowding the pan to ensure even cooking.
Spread the broccoli in a casserole. Avoid overcrowding the pan to ensure even cooking.
Place the broccoli casserole in the oven and roast the broccoli for 15 minutes.
Take the tray out of the oven and sprinkle the shredded cheddar cheese evenly over the broccoli. Return the tray to the oven and roast for an additional 5–7 minutes.