Whether served in a lunch pail, on a cafeteria plate, from a fast food restaurant, or with two martinis, lunch is an important historical and sociological indicator of American culture. Although the modern three-meal-a-day pattern may seem divinely ordained, it has undergone profound changes in the last century. Prior to the American industrial revolution, an agrarian society necessitated a hearty breakfast, a large noon meal called -dinner, - and a light evening repast known as -supper.- As the nineteenth century came to a close, and factories increasingly replaced farms as primary...