Cottage Pie - Cappuccino Oracle

Ingredients

• 1¼ kg ground beef
• 1 onion, chopped
• 2 carrots, diced
• 2 celery stalks, diced
• 2 cups beef broth
• 2 tablespoons tomato paste
• 2 tablespoons Worcestershire sauce
• 1.8 kg potatoes, peeled and cubed
• 4 tablespoons butter
• 1 cup milk
• 1 cup shredded cheese (optional)
• Salt and pepper to taste