Preheat the grill to 180'C.

Cook the cauliflower in a pan of salted boiling water for 10 minutes

Drain and evenly place them in an oven dish.

Melt the butter in a saucepan over a medium heat and stir in the flour.

Cook for 1 minute stirring constantly.

Remove from heat and add the milk gradually until smooth sauce.

Return to heat and bring to the boil, simmer until the sauce is thick and creamy.

Remove from heat and stir in the Cheddar cheese and nutmeg. Season to taste with salt and pepper.

Pour the cheese sauce over the cooked cauliflower, sprinkle over parmesan cheese and place under the grill to brown. Serve.