Puff Pastry Pasty

Name: Puff Pastry Pasty
Ingredients: 2 sheets puff pastry (don't forget to pull them out to thaw while making the filling) I use Pepperidge Farm; 1 egg; 1 tbsp olive oil; 1 tsp kosher salt; 1 1/2 lbs ground beef, ground elk or ground bison; 2 carrots, sliced thin; 1 onion, diced; 4 cloves garlic, minced; 1 russet potato, diced; 1 tbsp tomato paste; 1 tsp oregano; 1 tsp fresh thyme; 2 tbsp soy sauce; 2 tbsp unsalted butter; 2 tbsp all purpose flour; 2 C chicken stock; 1/2 tsp ground black pepper