Put all the ingredients except the sausages, butter beans and stock pot into the slow cooker. Stir well.
Add the sausages and give another quick stir.
Cook on High for 5 hours, or Low to Medium for 6-8 hours.
Check to make sure all the veg is cooked through. Stir in the butter beans and stock pot. Check the seasoning and add some salt and freshly ground black pepper if needed.
Allow to cook for another 20-30 minutes to heat up the butter beans, then serve