Preheat oven to 230℃ (450℉).
Add the beef mince and sausage meat (minus the outer casing) to a medium sized bowl and break up with a fork.
Add the spices and season with ½ tsp salt and ½ tsp pepper. Mix to combine.
Remove crusts from bread if desired. Run bread slices under some water to soak and gently squeeze out excess. Place in a bowl and gently break up with a fork (should be a bit chunky).
Add bread mixture, egg, parmesan and basil to the meat mixture and mix to combine.
Using wet hands or lightly oiled hands, scoop a heaped tablespoon of meat mixture at a time and roll into a ball. Place onto a silpat or baking paper lined oven tray.
Bake for 15 minutes or until browned (they do not need to be cooked through as they will still be baked in the tomato sauce).
Remove star anise pods from tomato sauce and season with salt and pepper to taste.
Turn oven temperature down to 200℃ (400℉).
Gently place baked meatballs into the tomato sauce. Cover the dutch oven with a lid and place in oven. Bake covered for 25 minutes.
Remove from oven and add the cheese. Return uncovered to oven for a further 5-10 minutes until cheese has melted.
Top with picked fresh basil leaves and a drizzle of extra-virgin olive oil. Serve spooned over spaghetti or your pasta of choice.