There is a Muslim restaurant running by Uyghur Muslims named Baghu -Bostan right next to the Jiahe shipincheng. Yes there are some halal noodles in around the zhanqianlu running by Tonggan Muslims.If you are not busy, you can go to Xiaobei by subway line five, there are many good restaurants there running by Turks, Arabians, Uyghurs, Indians and Chinese Muslims.