It's such a shame for them if they wanted to learn cooking, not to mention boring for us. Unless you count learning how to kill an eel.
When Gordon Ramsey did it, they started with a basic menu and it gradually grew along with their ability. They had specials, including ones devised by the contestants themselves.
Less celebs doesn't help, but this year it does just seem to be about working hard and not flapping under pressure. And being subservient to Marco.