When was the Filet-O-Fish sandwich introduced onto the national menu across the United States?
Answer
1967
Following its successful localized debut in Cincinnati in 1965, the Filet-O-Fish was evaluated for broader appeal. Just two years after its initial introduction by franchisee Lou Groen to cater to Lenten dietary needs, the sandwich was adopted onto the national menu system of McDonald's in the United States in 1967. This swift national rollout indicates the immediate success the concept found in its original market and its viability as a standardized menu item capable of serving a national audience.

#Videos
Is the Filet-O-Fish Actually Fish? - YouTube
Related Questions
What specific fish species is officially used for the battered and fried fillet in the Filet-O-Fish?What distinct feature characterized the sales slump experienced by Lou Groen in Cincinnati, Ohio?What is the scientific classification provided for the Alaska Pollock used in the sandwich?When was the Filet-O-Fish sandwich introduced onto the national menu across the United States?What operational choice for the Filet-O-Fish prioritizes product consistency over ingredient variety?Which specific ingredient is placed directly onto the hot fish fillet to allow it to melt slightly?What primary characteristic of Alaska Pollock allows it to hold up well during the required frying process?What key requirement does McDonald's state regarding how their Alaska Pollock is harvested?How is the existence of the Filet-O-Fish different from concepts developed via general market research?What distinct preparation method is applied to the soft, square bun used for the Filet-O-Fish?