Heat the oven to 200C/fan 180C/gas 6. Fry the sausages in a little oil in a casserole until browned all over. Remove the sausages, then add the bacon, onion and carrot, and cook for 7 minutes or until everything is starting to brown and the bacon is crisping up.
Add the remaining ingredients, except the parsley, season and stir well. Return the sausages to the casserole, then cover and bake for 30 minutes. Stir in the parsley, to serve.