Glamorgan sausages are not your typical sausages – that is, they're shaped like sausages and have the word sausage in their name, but contain no meat at all, so in order to find some middle ground, they're often dubbed vegetarian sausages.
This Welsh veggie sausage is made with a combination of Caerphilly cheese, leeks, and breadcrumbs. Due to the fact that there is no sausage casing, eggs are used to bind the mixture so that it doesn't fall apart. The mixture is shaped into a sausage, and it is then fried.