Add the carrots and celery, cooking for another 5 minutes until they start to soften.
Add the Vegetables:
Stir in the sweet potato, zucchini, butternut squash, and green beans. Cook for a few minutes, just to start softening the added vegetables.
Simmer the Soup:
Add the diced tomatoes with their juice, vegetable broth, water, thyme, oregano, and bay leaf. Season with salt and pepper to taste.
Bring the mixture to a boil, then reduce the heat to low and simmer, covered, for about 20 minutes, or until the vegetables are tender.
Final Touches:
Add the kale and chickpeas to the pot. Stir well and continue to simmer for another 5 minutes, or until the kale is wilted and the chickpeas are heated through.
Remove the bay leaf and adjust seasoning with more salt and pepper if needed.
Serve:
Ladle the soup into bowls. Garnish with fresh parsley and, if desired, a sprinkle of grated Parmesan cheese.