The following are some cheap and delicious food in Dinghai: 1. Xiaoding Seafood Restaurant: Located at No. 21, Dinghai Port Pier, Dinghai District, it provides seafood catering at relatively low prices.

2. Gaojiazhuang Seafood Restaurant: Located at No. 49, Donghai East Road, Dinghai District, Zhoushan City, Zhejiang Province, it provides seafood catering at moderate prices.

3. Ailianhai Seafood Theme Restaurant: Located at No. 11, Hexing Road, Lincheng Street, Dinghai District, Zhoushan City, Zhejiang Province, it provides seafood catering at moderate prices.

4. Chen Jie Seafood Casserole Restaurant: Located at No. 24, Jinjiawan Road, Dinghai District, Zhoushan City, Zhejiang Province, it provides seafood casserole at relatively low prices.

In addition, there are many cheap snacks and restaurants in Dinghai District, such as Yisen duck noodles, shaved noodles, stinky tofu, spicy hotpot, fried tofu shops, etc., with prices ranging from 10 to 20 yuan.

If you want to eat more affordable meals, you can choose to go to the night markets in Dinghai District, such as the night market on Furongzhou Road. There are many delicious snacks and dishes to choose from at very affordable prices.