Spaghetti with tuna balls

Method

• Step 1
  Cook the pasta in a large saucepan of salted boiling water until al dente. Drain.
• Step 2
  Meanwhile, place the passata and stock in a frying pan over medium-high heat. Bring to a simmer. Cover. Reduce heat to medium. Cook for 3 minutes or until heated through.
• Step 3
  While the sauce is cooking, process the bread, garlic, parmesan and lemon rind in a food processor until coarse crumbs form. Add the tuna, parsley and eggs, and process until combined. Season with salt and pepper. Roll tablespoonfuls of tuna mixture into balls.
• Step 4
  Add tuna balls to sauce. Cover and cook for 8 minutes or until tuna balls are cooked through. Divide pasta among serving dishes. Top with the tuna balls and extra parsley.