Ita-da-ki-masu! (lets eat!) You say before digging into your meal!
Went to a local restaurant just north of Aobadai area, about 15 minutes walk from my house, grabbed some lunch which was a set meal, cost around 580 yen, which is around £4/£5. Includes Miso soup (a must have for Japanese meals, slightly sour taste with seaweed and egg) and the very famous Katsudon! (rice, egg, onions, and pork cutlet fried in a crispy coating) Very delicious!