Beef Wellington Turnover

Tips:
Customize the Filling: Feel free to customize the filling by adding ingredients like caramelized onions, spinach, or different types of mushrooms for additional depth of flavor.
Puff Pastry Tips: Work quickly with puff pastry to prevent it from becoming too soft. If it becomes too warm, you can chill it again before baking.
Make-Ahead: You can prepare the Beef Wellington Turnover up to the point of chilling and then bake it just before serving.