Heat a tbsp. of olive oil in a large deep sided frying pan or saucepan over a medium heat. Add the sausages and brown on all sides. Remove from the pan and set aside.
Add 2 tbsp. of oil to the same pan and add the onion, carrot and celery with a pinch of salt. Gently cook until softened and starting to turn golden. Add the garlic and thyme and allow to cook for a couple of minutes.
Add the jar of beans with their bean stock, the chicken stock and bring to a simmer. Season and add the sausages back into the pan and simmer over a medium heat for around 15 minutes until the sausages are cooked through
Add the sugar, Worcestershire sauce and kale. Simmer for around 5 minutes until the kale is soft and cooked through. Add a handful of Parmesan, stir to combine.
Serve topped with the remaining Parmesan.