Beihai Park is located in the center of Beijing, and there are many famous food streets and restaurants around it. The following are some worth recommending:

1. Wangfujing Food Street: Located in the east of Beihai Park, it is one of the most famous food streets in Beijing. There are many traditional Beijing snacks and restaurants, such as Zhajiang Noodles, bean juice, roast duck and instant-boiled mutton.

2. Dongsi Food Street: Located in the south of Beihai Park, it is one of the famous snack streets in Beijing. There are many traditional Beijing snacks and restaurants here, such as snowballing usury, candied haws, bean curd, sheep scorpions and so on.

3. Xidan Food Street: Located on the west side of Beihai Park, it is one of the famous commercial streets in Beijing. There are many restaurants and food plazas here, offering all kinds of delicious food, such as roast duck, instant-boiled mutton, Japanese food, Korean food and so on.

4. Yonghe Palace Food Street: Located in the north of Beihai Park, it is one of the famous snack streets in Beijing. There are many traditional Beijing snacks and restaurants, such as bean juice, sheep scorpion, kebab, Zhajiang Noodles and so on.

5. Houhai Food Street: Located in the northwest of Beihai Park, it is one of the famous night markets in Beijing. There are many restaurants and bars here, offering all kinds of delicious food and drinks, such as roast duck, instant-boiled mutton, beer and coffee.

The above are some food streets and restaurants around Beihai Park. You can choose according to your own tastes and needs. In addition, due to the epidemic situation and other factors, the restaurant's business hours and dishes may be adjusted, so please check in advance when you go.