Dried vegetables are a convenient way to add color and flavor to a variety of foods. Easily rehydrated in warm water, these products are nice to have around when you need a veggie but not the hassle of storing and preparing the fresh version. Mushroom slices rehydrate quickly for use in soups and for stir frying. Mushroom powder is a simple way to add great flavor to creamy soups and sauces. Great as a quick addition to pasta and pizza sauce.