Leftovers can be a boon -- two homemade meals for the effort of one. Or, if improperly handled, leftovers can be sad and unappealing. Some minor adjustment to your methods will pay off, turning that foil covered dish into treasure. 1. Don't Forget the Water It is the rare food which can be successfully reheated without a sprinkle of water -- especially in the microwave. Most foods, including pastas, rice, grains and root vegetables, absorb surface liquids as they cool in your refrigerator. Replace that water by dripping, drizzling or flicking water onto the surface of any of the above before you reheat them. If you skip this step, the steam that the oven creates will be drawn off the surface of your food, leaving it rubbery and stiff. 2.