Preheat the oven to the temperature specified on the puff pastry package.

In a mixing bowl, combine chopped spinach, artichoke hearts, cream cheese, sour cream, Parmesan cheese, minced garlic, salt, and black pepper. Mix well until fully combined.

Roll out the thawed puff pastry sheet on a floured surface.

Spread the spinach and artichoke mixture evenly over the puff pastry.

Roll the pastry tightly into a log shape.

Slice the rolled pastry into swirls approximately 1 inch thick.

Place the swirls on a baking sheet lined with parchment paper.

Bake in the preheated oven for the time specified on the puff pastry package or until golden brown.

Remove from the oven and let cool slightly before serving.