Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

Lightly flour your work surface and roll out the thawed puff pastry sheets into a rectangle, about 1/8 inch thick.

In a mixing bowl, combine softened cream cheese, well-drained spinach, garlic powder, salt, and pepper. Stir until fully incorporated.

Spread the creamy spinach mixture evenly over the rolled-out puff pastry, leaving about an inch around the edges.

Roll the pastry tightly from one end to the other to form a log shape, then slice into 1-inch thick pieces.

Arrange the sliced roll ups on the prepared baking sheet and bake for 15-20 minutes until golden brown and puffy.

Let the roll ups cool slightly before serving with marinara or ranch for dipping.