Matuba in Arlington, Virginia, 2915 Columbia Pike, is a Japanese restaurant that is small restaurant and has a basic no-frills menu. They have another restaurant in Bethesda as well. The restaurant has been in the DC area for a long time, since I can remember going to the Bethesda location back in 1987. (Hey for restaurants that is a long time!)
The food is inexpensive and you’ll find most of the basic rolls and sushi there. They do tend to fill you up with tempura or rice. The miso soup is very good. Limited sake choice though. They have a long sushi bar to sit at and the service is very friendly.
They do take out as well.