The Best Ramen in Las Vegas. I have been searching for good ramen all over town by using Yelp as a guide, but Ohjah has topped my family's list. The amount you get is a little less than what you would get at Sora or other ramen joints, but the quality exceeds all. The employees are very friendly and very helpful. I personally like spicy ramen, but when I found that it wasn't spicy enough, they quickly brought out some chili oil to help increase the spice level. I will be coming here more often as it is the best ramen in town.