Natchitoches Meat Pot Pie

Name: Natchitoches Meat Pot Pie
Ingredients: 1 tablespoon vegetable oil; 1 pound ground beef; 1 pound ground pork; 2 small yellow onions, diced; 2 celery stalks, diced; 1 green bell pepper, seeded, diced; 1 red bell pepper, seeded, diced; 2 medium jalapeños, seeded, diced; 2 garlic cloves, finely grated on a Microplane; 3 bay leaves; 1 1/2 tablespoons Creole seasoning; 1 tablespoon all-purpose flour plus more for dusting; 1 teaspoon Worcestershire sauce; 6 plum tomatoes, diced; 1 cup beef broth; 3/4 cup thinly sliced scallions; 1/2 cup chopped flat-leaf parsley; 2 sheets store-bought refrigerated pie dough or 2 sheets frozen puff pastry (17.3-ounce package); 1 large egg; Kosher salt