In-N-Out brings 'animal style' to Tennessee with plans to expand further in the U.S.

Drivers wait in the drive-thru line at an In-N-Out Burger restaurant in Alhambra, California, on August 30, 2018. (Frederic J. Brown/AFP via Getty Images)

In-N-Out Burger is "double-doubling" down on growing its business, announcing it would open new locations in Tennessee, the farthest east the company has ever gone.

The California-based fast food chain – where you can order your burger "Animal Style" off the company's "not-so-secret menu" – said Tuesday that it would open new restaurants in Tennessee as well as an "eastern territory office" in Franklin, just south of Nashville.