01 -
Preheat oven to 425°F (220°C). Line a large baking sheet with parchment paper or foil.
02 -
In a large bowl, toss cauliflower florets with olive oil, Old Bay seasoning, chili pepper, and black pepper until well coated.
03 -
Spread the cauliflower evenly on the baking sheet, leaving space between pieces.
04 -
Roast for 25–30 minutes, flipping halfway through, until golden brown and crispy on the edges.
05 -
Sprinkle cheddar and parmesan over the roasted cauliflower. Return to oven for 5 more minutes, or until cheese is melted and bubbly.
06 -
Serve immediately while hot and crispy.