What was the name of McDonald’s early operating method that emphasized limited menus and assembly-line speed?

McDonald’s early operating method emphasizing limited menus and assembly-line speed was the Speedee Service System.

Richard and Maurice McDonald developed the system at their San Bernardino restaurant after reconsidering the traditional drive-in model. They reduced the menu, standardized preparation, and arranged kitchen work so that different employees could perform specialized steps quickly. Customers received food at a counter instead of waiting for carhops to deliver a large, varied order.

The method became central to McDonald’s identity because it linked the brand’s name with consistency and predictable service. It was also important to franchising: a clearly defined operating system could be taught and reproduced at many locations.

The name is connected with the early mascot Speedee, but the two are not identical. Speedee was a character used in branding, while the Speedee Service System was the restaurant-production method that influenced the company’s later growth.