Preheat the oven to 200 degrees C. Line a baking tray with baking paper or lightly grease.
Slice the eggplant in half lengthwise then cut each half into quarters lengthwise. Cut each of those in half to make two shorter quarters. Place the eggplant onto the baking tray with the skin side down. Brush each piece with olive oil and season with salt and pepper.
Roast in the preheated oven until softened and golden brown; 25 to 30 minutes. Remove from the oven and sprinkle with lemon juice. Serve hot.