QUIZ: Are You An In-N-Out Aficionado?

Scott Croker|Entertainment|30 Oct 2018

What decade was the protein burger introduced?

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Retry Correct Incorrect The protein burger was introduced in the 1970 when the restaurant’s owner was on a diet and started eating his burgers with lettuce wrapped around them. Sorry if you thought it was because of the Atkins diet!
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Irfan Khan/Los Angeles Times via Getty Images
Irfan Khan/Los Angeles Times via Getty Images

What decade was the protein burger introduced?

  • 1990
  • 1980
  • 2000
  • 1970
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