New Zealand Pie

Ingredients

• 2.00 lbs Ground beef
• 1.00 cup Carrots
• 1.00 cup Onions
• 1.00 cup Celery
• 2.00 tbsp Flour
• 1.00 tsp Salt
• 1.00 tsp Ground pepper
• 1.00 cup Beef stock
• 1.00 package Frozen puff pastry
• 1.00 large Egg
• 1.00 tbsp Milk