1Preheat oven to 220°C. Place eggplant halves, cut-side up, on a baking tray. Drizzle with half the olive oil and season with salt and pepper. Roast for 20 minutes.
2Combine sliced red onions, salt, sumac, and red wine vinegar. Set aside to marinate.
3Mix harissa, honey, and lemon zest and juice in a small bowl.
4Combine lentils, herbs, most of the pistachios, pomegranate seeds, remaining olive oil, and lemon juice in a mixing bowl. Season and toss.
5Brush the roasted eggplants with half the harissa glaze and return to the oven for 3-4 minutes.
6Top the cooked eggplants with the lentil salad, feta, marinated onions, remaining harissa glaze, pistachios, and pomegranate seeds.