Any muslim or veg returent in Zhenjiang?

Yes, there are some muslim and vegetarian restaurants in this city.
You can go to Beijiang Restaurant. It has many delicious muslim foods that also wins high popularity among local people. This one is located at 7th Floor, Yaohan Shopping Center, Dashikou, Jingkou District.

About vegetarian restaurant, Fine Lotus Vegetarian Restaurant is a good choice for you. It has healthy dishes with comfortable environment. The address is No.2, Biguiyuan Avenue, Huangmei Town, Qixia District.