Yakima is about mid-point between Seattle and Walla Walla - a friend of mine was coming into Walla Wall for the Cayuse release weekend while I was heading home with my wine. We figured Yakima would be a good place to meet for short break before we headed in our opposite directions.
Gasperrti's http://www.gasperettisrestaurant.com in Yakima is always a good bet, but on a Friday night it can be packed - we decided to try the Barrel House. The Barrel House http://www.thebarrelhouse.net/index.html dates back to 1906 when the buidling was a saloon/hotel. The menu features fresh local ingredients (the pear and portobello saute was really good). The wine list is fairly extensive (almost all WA wines) and the markup on the wine was very reasonable - a bottle of Walla Walla Vinters '06 Cuvee was $40 - retail is $29.
For the gents, should you need to use the facilities you'll be confronted with probably the largest urinal you've ever seen. Dating back to the early 1900's, it's claimed to be the largest in the state. Not sure what the cowboys in the valley were drinking back then, but this thing was built to last!