Soup
Canned soup can be condensed, which requires adding water (or sometimes milk), or it can be "ready-to-eat," which requires no additional liquid before eating. Condensed soup (invented in 1897 by Campbell Soup Company chemist John T. Dorrance) allows soup to be packaged in a smaller can and sold at a lower price than other canned soups.  The "ready-to-eat" variant of soup can be prepared by simply heating the contents of the can on a kitchen stove or in a microwave oven. Soups like these can be used as a side dish. Soups are usually warm and crisp and can be accompanied with many things such as toast, bread and more. A popular American dish is tomato soup with grilled cheese.