When you bake cauliflower in cheese, it becomes comfort food. Did you know that? Try this Oven Roasted Cauliflower and Cheddar Gratin; it's sure to change your mind!
Add the cauliflower, salt, pepper, and oil to a large bowl. Toss well to coat.
Transfer cauliflower to a baking sheet. Roast for 30 minutes, turning at the halfway point.
In the meantime, add 3 tablespoons of the butter to a large sauce pan, and over medium heat, bring the butter to a light bubble and whisk in the flour. Cook the flour for 3-4 minutes in the butter.
Add the milk and continue to whisk until sauce has thickened - about 3-4 minutes.
Next, add the nutmeg and cheese. Whisk into the sauce until cheese has melted.
Transfer the roasted cauliflower to the sauce pan and gently stir to incorporate into the sauce mixture.
Pour the cauliflower and sauce into a baking dish. Top with the panko and dot with the remaining two tablespoons of butter.
Bake for 20 minutes. If you prefer a crispier top, broil for a minute or two after the gratin has finished baking.