The peanut butter and banana sandwich (pb&b), or peanut butter, banana and bacon sandwich (pb,b&b), sometimes referred to as an elvis sandwich or simply the elvis, consists of toasted bread slices with peanut butter, sliced or mashed banana, and occasionally bacon. honey or jelly is seen in some variations of the sandwich. the sandwich is frequently cooked in a pan or on a griddle. the recipe for the sandwich has been published in numerous cookbooks and newspaper stories. it has been sold commercially in restaurants.

Source: Wikipedia