hmmm..
i'm not a big fan of chinese cuisine but here are some far eastern ones:

1. ThaiChi in Villagio

2. Wok Mee in Movenpick

3. Asia Live in Doha Marriot Hotel

4. Simply Asia in Intercontinental Hotel

5. Chopsticks in Grand Regency Hotel

6. Korean Garden on Suhaim bin Hamad Road

7. Ruby Wu's and 8. Sakura ~ both in Ramada Hotel

hope you find one or more you like =)