Quarter the aubergine (eggplant) lengthwise, and halve the courgette (zucchini) lengthwise, then slice both into 1cm slices. Toss in 1 tbsp olive oil, and spread out on a baking tray.
Cut each cherry tomato in half, and place on one side of a second baking tray. Cut the pitta breads into chunky pieces, and spread the pieces out next to the tomatoes. Sprinkle the pitta bread with salt, pepper and dried parsley, and then drizzle everything with the remaining 1 tbsp olive oil.
Place the tray with the aubergine and courgette in the oven to roast at 190°C (Gas Mark 5 / 375°F) for around 30-35 minutes, until soft, and just beginning to crisp up. Cook the second tray, with the pitta bread and tomatoes, for around 15 minutes, until the pitta is golden brown and crispy. Set both trays aside to cool once properly cooked.
To assemble the salad, put the salad leaves in a large mixing bowl, and add the cold ingredients (feta, olives, parsley, mint, sun-dried tomatoes). When the roasted ingredients have cooled, add those too.
To make the dressing, add all of the dressing ingredients to a small jar, replace the lid, and shake thoroughly to combine. If you don't have a small jar, you can just mix thoroughly with a fork. Drizzle the dressing over the salad, and toss everything together. Serve immediately.