Preheat Oven: Preheat oven to 400°F (200°C). Line a baking sheet with parchment paper.

Prepare Puff Pastry: Unfold puff pastry onto the baking sheet. Score a 1/2-inch border around the edges with a knife (don’t cut all the way through). Prick the center area with a fork to prevent puffing.

Make the Cheese Spread: In a small bowl, mix goat cheese, cream cheese (or sour cream), lemon zest, and black pepper until smooth.

Assemble the Tart: Spread the cheese mixture evenly over the inner rectangle of the puff pastry. Arrange asparagus spears over the top (trim to fit, if needed). Drizzle lightly with olive oil.

Brush Edges: Brush the outer edges of the pastry with beaten egg for a golden crust.

Bake: Bake for 20–25 minutes, or until the pastry is puffed and golden and the asparagus is tender.

Serve: Let cool slightly. Sprinkle with herbs or red pepper flakes, if desired. Slice and serve warm or at room temperature.