For the sauce:

1. Melt butter in a pan.
2. Add flour, milk, salt, pepper and nutmeg.
3. Stir the mixture continuously and let it cook, till it acquires a creamy consistency.

For the florets:

1. Rinse the cauliflower and the broccoli. Boil in salt water. Drain.
2. Place on a baking dish.
3. Pour sauce over the cauliflower and broccoli. Sprinkle with grated cheese and let it brown a little in the oven. Serve hot.

Image: Flickr/creativecommons norwichnuts