Some say the best onion rings on the strip live here. I didn't try them but they looked damn good (a ring tower for $11) - this place serves burgers, sandwiches, hot dogs, and lots of novelty items like shakes and frozen hot chocolate. You'll pay for the food but hey, it's Vegas. The interior gives off a kitschy 50's vibe, our server was friendly and kept the fountain drink cups full. I'd bet this is a good place to visit after a few beers and the hamburgers can help soak up some of that alcohol! The burgers are served dry for some odd reason- you have to ask for the condiments and toppings. The fries are excellent, battered and crispy. So if you're in the mood for a quick dining option and good burgers head to S3 near Ceasars Palace. There's an outdoor seating area and also a quick order window to take away food (limited menu though).