In-N-Out Burger is a California-based fast food chain that has become a cult favorite among burger lovers. The menu is simple, with just a few burger options, fries, and shakes, but the quality of the food is top-notch. The burgers are made with fresh, never-frozen beef and the fries are hand-cut on site. In-N-Out has a loyal following and is a must-visit for anyone visiting Los Angeles.