Yes some people love East Coasts Shake Shake or Texas staple Whataburger but for me the best burger joint is Orange Counties own In N Out Burgers. I have had Shake Shake in Las Vegas its good but expensive compared to the simple greatness that is a Double Double Burger from In N Out.
I recently stopped by an In N Out location on Bristol Street in Santa Ana and as you can see from the picture below the location has a double drive through. The location does have no indoor seating although it does have an extensive outdoor seating on the side as well as the back.
Location: 815 N Bristol Street, Santa Ana