Preheat your oven to 220°C (430°F). In a large mixing bowl, combine chopped eggplant, zucchini, peppers, and tomatoes. Drizzle with olive oil, then sprinkle with salt, pepper, and dried herbs. Toss everything together until evenly coated.
Spread the seasoned vegetables in a single layer on a large rimmed baking sheet. Make sure they’re not overcrowded so they can caramelize properly.
Place the baking sheet in the oven and roast for about 25-30 minutes. Stir the vegetables halfway through to promote even browning. You’ll notice the edges turning golden and crispy, with the tomatoes bursting and releasing their juices.
Once the vegetables are beautifully browned and tender, remove the sheet from the oven. If desired, drizzle with a little extra olive oil or balsamic vinegar for added flavor.
Garnish with freshly chopped herbs like basil or parsley. Serve hot or at room temperature, paired with crusty bread or over grains for a hearty meal.