What was McDonald’s streamlined 1948 restaurant operating system called?

McDonald’s streamlined 1948 restaurant operating system was called the Speedee Service System.

Richard and Maurice McDonald developed the system after closing their original drive-in restaurant and redesigning the business around speed and consistency. They reduced the menu, prepared food in an assembly-line format, and used counter service rather than relying on carhops.

The name connected the operating method with Speedee, an early McDonald’s advertising character. Speedee was depicted as a chef-like figure and helped communicate the restaurant’s emphasis on fast service before Ronald McDonald became the better-known mascot.

The Speedee Service System is often confused with a slogan or a single menu item. It was actually a business and kitchen model. Its standardized procedures became one of the foundations for McDonald’s franchising and later influenced the wider fast-food industry.