Roast a whole load of chunky vegetables in some olive oil in the oven (eg onion, courgette, pepper, mushrooms, cherry tomatoes etc). Steam a small head of cauliflower and a similar quantity of broccoli. Make up a really good strongly flavoured cheese sauce (nice with some whole grain mustard added). Add the lightly cooked cauliflower and broccoli to the roasted vegetables, pour over the cheese sauce and then cook in the oven for about half an hour and serve up with boiled new potatoes or baked potatoes.