Making Puff Pastry Tomato Tarts is simple and straightforward. Follow these steps to create your own delicious tarts:

1. Preheat the Oven: Set your oven to 400°F (200°C) to prepare for baking.
2. Roll Out the Puff Pastry: On a lightly floured surface, roll out the puff pastry to fit your tart pan or a baking sheet.
3. Prepare the Base: Place the rolled pastry on a baking sheet lined with parchment paper. Prick the base with a fork to prevent bubbling.
4. Mix the Cheeses: In a bowl, combine the ricotta cheese, mozzarella, olive oil, salt, pepper, and oregano. Blend well until creamy.
5. Spread the Cheese Mixture: Evenly spread the cheese mixture over the puff pastry, leaving a small border around the edges.
6. Arrange the Tomatoes: Layer the sliced tomatoes on top of the cheese mixture, overlapping slightly for an attractive presentation.
7. Add Herbs: Sprinkle fresh or dried basil over the top for added flavor.
8. Brush with Egg Wash: Whisk the egg and brush it gently over the exposed puff pastry edges for a golden finish.
9. Bake: Place the tart in the preheated oven and bake for 25-30 minutes, or until the edges are golden brown and puffed.
10. Cool and Slice: Allow the tart to cool for a few minutes before slicing and serving.

By following these steps, you’ll create stunning Puff Pastry Tomato Tarts that are sure to impress.