Prepare the Puff Pastry: Preheat the oven to 400°F (200°C). Roll out the puff pastry on a lightly floured surface until it’s about 1/8 inch thick. Transfer the pastry to a parchment-lined baking sheet.
Dock and Score the Pastry: Use a fork to gently poke holes (dock) in the center of the pastry, leaving a 1-inch border around the edges. This helps prevent the center from puffing up too much while baking. Brush the edges of the pastry with the beaten egg to create a golden crust.
Prepare the Goat Cheese Filling: In a small bowl, mix the goat cheese with olive oil, lemon zest, fresh herbs, salt, and pepper until smooth and creamy. Spread the goat cheese mixture evenly over the center of the puff pastry, leaving the edges clear.
Arrange the Asparagus: Arrange the roasted asparagus spears in a neat row or a fan shape on top of the goat cheese filling. Season with a pinch of salt and pepper.
Bake the Tart: Bake the tart in the preheated oven for 20-25 minutes, or until the puff pastry is golden and crispy, and the cheese is slightly melted.
Serve and Enjoy: Remove the tart from the oven and let it cool slightly before slicing. Garnish with fresh herbs and serve warm or at room temperature with a side salad.