The reason why there are a list of allergens on some stuff saying may contain fish oil or nuts in dishes that don't is because everything is cooked in the same kitchen. You don't have a special kitchen for vegan only dishes. For example you can't guarantee that if you order a green chicken curry that has no nuts won't get a tiny nut as thin as a hair won't hop over from the grilled chicken green curry with cachew nuts being cooked next to it even though it's extremely rare you can't say that it can't happen or you will take legal responsibility for a freak accident. Some people can be so sensitive to allergies that tiny piece of nut on the table from previous guests getting on a culterly of new guests even though again freak accident and extremely unlightly to happen. Nut and fish allergies are extremely extremely sensitive and should be treated as such. The curries can be ordered vegan along with most other dishes.