If you want to make your own puff pastry, start here.Next, roll out your puff pastry on a baking sheet lined with parchment paper. Preheat your oven to 180°C/350°F.
In the bowl of a small blender (or using a knife), finely chop the sundried tomatoes and mix them with the yogurt.Spread them over your tart base to within 1 centimeter of the edge. Slice the eggplant into 0.5 to 1 cm thick slices and arrange them on the tart base.Brush them with olive oil. You can also use the oil from your jar of sundried tomatoes; it will be even more flavorful. Finely slice the onion and spread it over the eggplant slices.
Cut the mozzarella or feta into small cubes and arrange them on the tart.
Sprinkle with grated Parmesan and sprinkle with pine nuts.
Bake for 20 to 30 minutes, keeping an eye on the cooking time.
Enjoy hot or warm with a green salad.