What phrase was McDonald's early service system called when the McDonald brothers reorganized their restaurant in 1948?

The McDonald brothers called their reorganized 1948 operation the “Speedee Service System.”

The system grew from their decision to simplify the menu, standardize preparation, and emphasize rapid service. Instead of operating primarily as a drive-in with broad service, the restaurant focused on a smaller group of foods that could be produced consistently and quickly.

The name influenced McDonald's early branding, including the Speedee mascot. It also anticipated the operating model later associated with modern fast food: specialized tasks, repeatable procedures, limited choices, and predictable portions.

The Speedee Service System is sometimes confused with a later McDonald's slogan or logo. It was not merely an advertising line; it described the restaurant's operating concept. The system's emphasis on speed and uniformity became a foundation for the brand identity that followed, including the arches and later international advertising.