Without question, the restaurant's most famous creation was the cobb salad—improvised one day early in the restaurant's history by Robert H. ''Bob'' Cobb, a protege of Derby founder Herbert K. Somborn and president of the Brown Derby Corporations after Somborn's death in 1934. According to Richard Morgan, the Derby's executive chef at the time, Cobb got hungry one day and ''he chopped up whatever was around—some lettuce, an avocado from the icebox, some bacon left over from the breakfast service—and stirred it all up in a bowl. He liked what he came up with and, by adding a few new ingredients, developed a recipe.'' Morgan remembers the eventual salad, which became an instant hit, as ''a bowl filled with lettuce...topped with stripes of ingredients—red tomatoes, blue cheese, white chicken, and the rest—so that it resembled a flag. The waitress would arrive with it at the table, dribble the dressing over it, and toss it there. Today people will chop up everything but the kitchen sink, throw it all together, and call it a cobb.'' It's not.