Preheat the oven to 400°F (200°C) and line a baking tray with parchment paper.
Roll out the puff pastry slightly and place it on the prepared tray. Score a 1-inch border around the edges without cutting all the way through. Prick the center with a fork.
In a bowl, combine the ricotta, Parmesan, egg, lemon zest, The Holly Tree Organic Oregano Leaves, and The Holly Tree Organic Black Pepper Powder until smooth.
Spread the ricotta mixture evenly over the center of the pastry, leaving the border exposed.
Arrange the sliced olives and cherry tomatoes evenly over the ricotta layer.
Lightly drizzle with olive oil and sprinkle with The Holly Tree Organic Chili Flakes if desired.
Bake for 25–30 minutes, or until the pastry is puffed and deep golden brown and the filling is lightly set.
Remove from the oven and allow to cool for 5 minutes.
Garnish with fresh basil leaves and an additional sprinkle of The Holly Tree Organic Oregano Leaves before serving.