The menu component of Donald Smith's Operation Phoenix was initiated in 1978 and led to the addition of the Burger King Specialty Sandwich line in 1979. The new product line significantly expanded the breadth of the BK menu with many non-hamburger sandwiches, including new chicken and fish offerings. The new Specialty Sandwich line was one of the first attempts to target a specific demographic, in this case adults 18–34, members of which would be willing to spend more on a higher quality product. One of Smith's other significant contributions to the menu was the addition of a breakfast product line, which until this time was not a market Burger King had entered.Besides the addition of the Croissan'Wich in 1983, the breakfast menu remained almost identical to the McDonald's offerings until a menu revamp in 1985.This expansion introduced BK's "Am Express" product line, which added new products such as French toast sticks and mini-muffins.