Here are some hotels near Yu Xin Sichuan Cuisine( Xidan ): Guidu Hotel Beijing,Xuanwu Men Hotel,,City Star Hotel,Orange Hotel (Beijing Guanyuan Bridge)
You could try Shaguoju (xisidian),Niu Jie Qing Zhen Man Heng Ji,QingFeng BaoZiPu (YueTandian),KaoRou Wan Restaurant(Nanlishiludian),Fang Shan Restaurant ( Bei Hai Dian )