If one is on diet,not necessarily the other one has to be on diet.We can adjust the dishes we make avoiding excess quantity of oil.Besides,one can have butter though other can have a pc.of bread without it. Milk & curds without fat can be made use of leaving fat aside for ghee.Even the person on diet can simplify the process.Instead of boaring everyone with plain salad one can make Raita with same stuff using fatless curd.If one has a Micro,one can enovate his or her own style such as adding little oil in the stuff for cutlet and baking them in Micro instead of deep frying.You get readymade Patra or make kothmir wadi simply by steaming and then with greecing the plate same can be baked.Very Simple to adjust!!!!