Step 1

Preheat oven to 180°C/350°F. Oil deep 2.5-litre (10-cup) ovenproof dish.

Step 2

Cook pasta in large saucepan of boiling water until tender; drain.

Step 3

Melt butter in large saucepan; cook onion, garlic and celery, stirring, until onion softens. Add flour; cook, stirring, about 2 minutes or until mixture bubbles and thickens. Gradually stir in milk and cream. Cook, stirring, until sauce boils and thickens.

Step 4

Stir pasta, tuna, parsley and rind into sauce mixture; season. Spoon mixture into dish; sprinkle with combined breadcrumbs and cheese. Bake, uncovered, about 35 minutes or until browned lightly.