Monta, my favorite! I love coming to Monta when hitting up Vegas. My friend tells me that this is where the locals go.
Food is amazing. AND AT CHEAP PRICES! I usually go with the Tonkotsu Ramen. Very tasty. Also try to Kim Chi fried rice! It's so good and goes great to compliment the ramen.
The last time I visited, I tried the cold noodles. I forget what the name was on the menu but it was so tasty. It was packed with flavor when you eat. It also had that refreshing taste to it. You leave the restaurant, not sluggish, but having a refreshed feeling, which isn't normal. Well to me at least! Great restaurant and open pretty late!
Space is small, so try to get there early. I heard that the wait times can be long if you go during prime times.