Which hotel can you recommend that conveniently located to Xian food street/local attractions?

Well, what's your budget of the accommodation? You are suggested to stay at Yitel Hotel Bell Tower South Street Branch. The price is around CNY 550 per night in usual time. It has comfortable living environment and warm service. The address is No.54, South Street, Beilin District. It close to Bell Tower, Muslim Street and City Wall.
However, according to your arrival time, most restaurants would be closed. You can still find several convenience stores and buy some food. In the early morning, you can go to the Muslim Street and enjoy some local snacks. :)