Roll the thawed puff pastry using your rolling pin till it's nice and thin. Prick all over using a fork so that it doesn't puff up too much during baking.
Cut it into 4 equal rectangles and put them on parchment lined baking sheet.
Place 2 tablespoons of nutella in the center of each rectangle, leaving space on the edges.
Spread strawberries over the nutella and bake until edges of pastry are puffed and golden brown, around 15 minutes.
Dust with powdered sugar [optional] and enjoy this easy strawberry nutella tart immediately!