Chicken Pot Pie Pasta
Ingredients:8 oz penne pasta2 tablespoons unsalted butter1 small onion, diced2 carrots, diced2 stalks celery, diced2 cloves garlic, minced1/4 cup all-purpose flour2 cups chicken broth1 cup milk2 cups cooked chicken, diced1 cup frozen peas1 teaspoon dried thymeSalt and black pepper to taste1 sheet puff pastry, thawed1 egg, beaten (for egg wash)Directions: