Preheat oven to 400°F.
In a small bowl, combine goat cheese, sour cream, herbs, 1/2 teaspoon salt and 1/4 teaspoon pepper.
Using a pastry brush, brush the tomatoes and the border of the puff pastry with olive oil then season with salt and pepper.
Bake for 20 minutes or until puff pastry is puffed and golden. Garnish with basil leaves and slice to serve.