 There are many variations on the dish that include using mutton when goat is not available or bulking it out with potatoes.It is popular during Eid al-Adha, which is when a goat is sacrificed by Muslim Indo-Caribbeans.In Britain, the carnivals in St Pauls, Bristol and Notting Hill, London and other Caribbean cultural events will usually have curry goat available as well as other regional foods.