Lasagne

Ingredients

• null 2 tablespoons Anchor Butter
• 1 onion, finely chopped
• 1 stalk celery, finely sliced
• 1 carrot, diced
• 2 cloves garlic, finely chopped
• 700g lean beef mince
• Salt and pepper
• 2 cups tomato passata
• 1 cup beef stock
• null 50g Anchor Butter
• ¼ cup flour
• 3 cups milk
• 2 cups grated mozzarella cheese
• ¼ cup grated parmesan cheese
• 250g dried lasagne sheets