Take a peek inside In-N-Out owner's $19 MILLION home

The residence was recently put up for sale with a price tag of $19,799,000 (that's a whole lotta Double-Double's!).

According to its official listing, the 16,600 square foot main residence includes 7 bedrooms and 16 bathrooms. The property sits on more than 4 acres in Southern California.

340OldRanchRoad.com screen shot

See more pics HERE.

Here's a bit more on the owner, Lynsi Snyder, from TMZ:

35-year-old Lynsi is one of the youngest billionaires in the U.S. ... after inheriting 50% of the company's stock on her 30th birthday after her father passed when she was young. She became President of the food chain in 2012.