While the cauliflower cooks, start the Bechamel sauce:
Melt a tablespoon of butter or oil, when hot add 1 tablespoon of flour and cook for a minute. Slowly add some milk while stirring constantly so the sauce thickens without chunks. when all the milk is used, let it thicken a little more and add salt pepper and grated cheddar.
Pour the sauce on the cauliflower, mix a little and cover the surface with a cup of grated swiss cheese.
Broil until a cheesy golden crust has formed but be careful not to burn it, it goes fast!
I cauliflower
2 cups milk
1tbsp butter or oil
1 tbsp flour
1 cup grated cheddar
1 cup grated swiss cheese
salt and pepper to taste