Louis M. Groen (August 8, 1917 – May 30, 2011) was an American entrepreneur, businessman, and lifelong resident of Cincinnati, Ohio.
Born and raised in Cincinnati, Ohio, Groen graduated from North College Hill High School in 1935.
At his peak, Groen owned 43 McDonald's restaurants in the Ohio and northern Kentucky region, eventually selling them back to the McDonald's corporation, including a longtime business partner Ed Cummings's brother and son.
[3] A prominent McDonald's hamburger restaurant franchisee from 1959 to 1986, after he introduced his sandwich in 1962, McDonald's Corp. founder and CEO Ray Kroc was not exactly impressed with the idea of having a fish sandwich on his franchise menu, for he thought that he had a better idea, a "Hula" burger, which had simply a breaded, fried pineapple slice in between a toasted bun and a slice of cheese.
Recalls Groen: "I told Ray (Kroc) about it (the idea of the Filet-O-Fish sandwich) and he said, “You’re always coming up here with a bunch of crap!” “I don’t want my stores stunk up with the smell of fish.” [4] Groen engaged in a wager with Kroc on whose idea would sell better.