Viking's restaurant is right next to Yumeya. It is the first restaurant I tried in Japan. I would suggest going during lunch hour on a weekday because it is all you can eat for 1 hour and it is cheaper than other hours. At Vikings, you take your plate, and pick your own raw food. (Raw meat and vegetables) and cook it over the grill in the middle of the table. There are regular tables and a Japanese style tatami section where you take off your shoes and sit on the floor.
grill your own food!
Directions to Vikings: From POL gate go straight. At the first light take a left. Viking's will be on your third left. It is right next to the ramen shop with the picture of the kitty.