Shepherd's pies

Ingredients

• 2 tablespoon olive oil
• 2 celery stalks, finely chopped
• 2 carrots, finely chopped
• 1 large onion, finely chopped
• 1 tablespoon rosemary, chopped
• 500 gram lamb mince
• 1/4 cup worcestershire sauce
• 1/4 cup tomato sauce
• 1/2 cup water
• Topping
• 4 large potatoes, peeled, quartered
• 1/2 cup milk
• 40 gram butter
• 1/3 cup dried breadcrumbs
• 1 cup shredded tasty cheese