In-N-Out Burger is a fast-food chain restaurant that primarily serves burgers, fries, and shakes. The company was founded in 1948 in Baldwin Park, California and has since expanded to over 300 locations in six states. The restaurant is known for its "secret menu" items, fresh ingredients, and simple menu. In-N-Out Burger is also known for its high employee satisfaction and offers competitive pay and benefits, resulting in a loyal workforce.

In-N-Out Burger provides classic American fast-food cuisine including burgers, fries, shakes, and sodas. The menu typically includes variations of their classic hamburger, cheeseburger, and double-double, as well as options for animal-style and protein-style burgers. They also offer grilled cheese sandwiches, french fries cooked with skin on, and milkshakes made from real ice cream.