1 sheet frozen puff pastry, defrosted
2 tablespoons pesto
1/4 cup parmesan cheese, grated
2 tablespoons finely chopped sundried tomatoes in oil, drained
2 tablespoons toasted pine nuts
1/4 teaspoon kosher salt
On a lightly floured surface, unfold one sheet of puff pastry. Roll it with a lightly floured rolling pin until it's 9 by 11-inches. Spread the sheet of puff pastry with the pesto, and then sprinkle with the cheese, sundried tomatoes, and the pine nuts. Sprinkle with teaspoon salt.
Working from the short ends, fold each end halfway to the center. Then fold each side again towards the center until the folded edges almost touches each other. Gently fold one side over the other and press lightly. Cover with plastic wrap and chill for at 1 hour.
Meanwhile, preheat the oven to 400°F. Cut the chilled puff pastry in 1/4 inch thick slices; place them cut side up and 2 inches apart on baking sheets lined with parchment paper. Bake for 12 to 14 minutes, or until golden brown. Cool on a wiring rack.