Pls recommend Restaurant for Dinner in Yufuin

i will stay in 8 July..... But we have no plan for dinner meal. Because ryokan yuri not has the dinner.

could you recommend the fantastic place for have a dinner with my girlfriend please. : ) Thanks

Please refer to here.
http://yufuin.or.jp/global/modules/search/index.php?sobj_genre=genre1
http://r.gnavi.co.jp/area/aream5444/rs/

I recommend Yunotake-Ann in Hotel Kamenoi Besso which is one of the top-rated ryokan in Yufuin. Yunotake-Ann offers course dinner at 4000-6000 yen range which is quite reasonable, I think. Yunotake-Ann is top rated in Tabelog and ranked 8th in Tripadvisor.

http://tabelog.com/oita/A4402/A440201/rstLst/washoku/?LstCos=0&LstRev=...
http://tabelog.com/oita/A4402/A440201/44000042/

http://www.tripadvisor.jp/Restaurants-g1023445-Yufu_Oita_Prefecture_Ky...

It depends on how much you want to spend or what you eat.
There are many near the JR station & along the main shopping street toward Kinrinko-lake, i.e. sushi, tonkatu, etc. and also street vendor foods. An upscale restaurant, too. About a half way just passed the multi-road intersections, there is a co-op supermarket and behind that is a made to order/take-out bento shop.
If you go to the west side (the left from the station) there are many that the locals go including a ramen shop. On the main bus road there is a family restaurant.
A upscalerestaurants is located south side of the creek running from the lake before the local craft tourist souvenir shop(tourist bus parking area).
Kamenoi Ryokan restaurant is good but expensive. Their old warehouse attic cafe is a good place to relax. This area is well known for free range chicken, deer meat, Yuzu citrus, You have so many options.