Preheat the oven to 180°C. Grease a large baking sheet with olive oil. Keep a deep ovenproof dish or roasting pan handy.
1. Brinjals: Arrange the brinjal slices on a tray and sprinkle the coarse salt over. Leave to stand for 15 minutes, then rinse and pat dry.
2. Transfer to the baking sheet and drizzle the olive oil over. Roast for 15-20 minutes or until soft.