In a large pot, sauté the chopped onion, garlic, and ginger in olive oil.
Once the onions are nicely browned, add the bell peppers, zucchini, carrots, turnips, chili pepper, and tomatoes. Sauté everything for 10 minutes.
Add 1 litre (4 cups) of water, the tomato paste, and the spices. Season with salt and pepper. Simmer for 15 minutes.
Next, add the eggplant and the leek. Continue cooking for another 15 minutes.
Add the chickpeas and simmer for a few more minutes. Stir in a few fresh cilantro leaves.