Flaky Chicken & Mushroom Pasties Recipe

Name: Flaky Chicken & Mushroom Pasties Recipe
Cuisine: American
Ingredients: 2 tablespoons olive oil; 1 medium onion, finely chopped; 2 garlic cloves, minced; 1 ½ cups diced chicken breast (cooked or raw); 8 oz mushrooms, finely chopped; 2 tablespoons all-purpose flour; ½ cup chicken stock; 2 tablespoons heavy cream; 1 teaspoon thyme (fresh or dried); Salt and pepper to taste; 1 package puff pastry (thawed, if frozen); 1 egg (beaten, for brushing); Optional Fresh parsley for garnish.; Large skillet or frying pan; Rolling pin (if needed to adjust pastry thickness); Pastry brush