Heat the olive oil in a large pot over medium heat. Add the onion and cook for 4 minutes until it begins to soften.
Stir in the garlic and cook for 1 minute until fragrant.
Add the eggplant cubes and cook for 5 minutes, stirring occasionally, until the edges start to brown.
Add the zucchini and red bell pepper. Cook for another 4 minutes.
Pour in the diced tomatoes and vegetable broth. Stir in the oregano, thyme, salt, and black pepper.
Bring the mixture to a gentle simmer, then cover and cook for 15 minutes.
Stir in the chickpeas and simmer uncovered for 10 more minutes until the vegetables are tender and the stew has thickened.
Remove from heat and sprinkle with fresh parsley before serving.