Which restaurant used the slogan "Where's the beef" in its 1980s commercial?

"Where's the beef?" is a catchphrase that was used in the United States and Canada in 1980s. The phrase originated as a slogan for the fast food chain Wendy's. After the phrase was used by Wendy's, it then became an all purpose phrase questioning the substance of an idea, event or product.

The ad, originally titled "Fluffy Bun," was the brainchild of top tier ad agency Dancer Fitzgerald Sample. The beef ad featured three white-haired grannies examining a new burger — with a tiny patty and a huge bun — from an unnamed restaurant, the "Home of the Big Bun".

While the other two women admired the "big, fluffy bun," Clara Peller, the third woman, wasn't satisfied, croaking the immortal query, "Where's the beef?" (Interestingly, Wendy's first tried a version with a bald man uttering the line, but it failed to catch on.) The catchphrase was a sharp jab at competitors Burger King and McDonald's, allowing Wendy's to trumpet the fact that their burgers had more beef than the Whopper or Big Mac.