We flew in to Vegas and had a six hour layover. We were very hungry, so after checking our luggage in, we searched for a Japanese restaurant that was both close to the airport and inexpensive. We yelped for a while and we found this restaurant! And I'm sure glad we did.
When you first enter the restaurant, you're greeted with a nice display case filled with vibrant-colored appetizing-looking food models and prices. The food service is also incredibly fast. It's cafeteria style so you grab a tray and order what you want. In this case ontama udon and miso garlic pork belly ($7.95 each). Then as you go down the line, there's various tempura and rice rolls varying in prices. For example a single shrimp tempura was about $1.25. Our total was about $25 and the portions were filling. Also if you're a first time visitor, they'll give you complimentary soup to wash everything down. The food was delicious and for the price you pay, you can't beat that. The customer service was fun and friendly.
If you have time to kill and looking for a nearby Japanese restaurant (from the airport) that serves quality food for an inexpensive price, then I highly recommend Cafe Sanuki