I thought about suggesting that you start cooking for one! If he wants to eat he'll learn....but then he again he'll probably just pick up the phone and order pizza! Sooooooo....how about a reward system/ Teach him just how much fun cooking can be?! Start simple - hummus - nice and easy. If he does it right, then you feed each other ...lots of messy finger-licking. Now you suggest that while that was fun - maybe you could have even more fun if he made something like, say ....chocolate mouuse!!!! Promise him that if he makes a simple two-course meal (say the bagged chicken/fish or an edible spag bol!) including something moussy for dessert then you will both retire to the bedroom and take the mousse with you!(Might help if a parent can take any children for the night/afternoon).....Maybe you could agree that the next meal he cooks you will turn up at the dinner table naked except for a pair of stiockings and high heels!.....I'm guessing he might just start to find cooking is actually not that difficult!