This is a doubtful matter. The food itself may be halal, but many scholars advise not sitting at a table where alcohol is being drunk, in the spirit of the verse that forbids sitting with people while Allah's verses are mocked (4:140). If there is no other choice, order halal food, avoid the table of alcohol, and keep away from the doubtful where you can.
O, size Kitap'da "Allah'ın ayetlerinin inkar edildiğini ve alaya alındığını işittiğinizde, başka bir söze geçmedikçe, onlarla bir arada oturmayın, yoksa siz de onlar gibi olursunuz" diye indirdi. Doğrusu Allah münafıkları ve kafirlerin hepsini cehennemde toplayacaktır.
Hadith
Sahih al-Bukhari 52
Narrated An-Nu'man bin Bashir: I heard Allah's Messenger (ﷺ) saying, 'Both legal and illegal things are evident but in between them there are doubtful (suspicious) things and most of the people have no knowledge about them. So whoever saves himself from these suspicious things saves his religion and his honor. And whoever indulges in these suspicious things is like a shepherd who grazes (his animals) near the Hima (private pasture) of someone else and at any moment he is liable to get in it. (O people!) Beware! Every king has a Hima and the Hima of Allah on the earth is His illegal (forbidden) things. Beware! There is a piece of flesh in the body if it becomes good (reformed) the whole body becomes good but if it gets spoilt the whole body gets spoilt and that is the heart
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Can I eat in a restaurant that serves alcohol?
This is a doubtful matter. The food itself may be halal, but many scholars advise not sitting at a table where alcohol is being drunk, in the spirit of the verse that forbids sitting with people while Allah's verses are mocked (4:140). If there is no other choice, order halal food, avoid the table of alcohol, and keep away from the doubtful where you can.
