Prepare the soup: In a large pot, heat the olive oil over medium high heat. Add the onion, carrot and celery and sauté for 5 minutes. Add the garlic, ginger, chickpeas, and 1/2 teaspoon of the salt and sauté for 1 minute.
Add the vegetable broth, garlic powder, turmeric, 1 teaspoon salt, rice and bring to a simmer. Simmer for about 15 minutes until the rice is tender.
Stir in the spinach and lemon zest and cook until the spinach is wilted, about 1 minute. Taste and add a pinch more salt and fresh ground pepper to taste. Serve warm (garnish with grated Parmesan for a flavor punch, if you like). Stores 3 days refrigerated; the rice soaks up the broth over time, so add a splash or water and a pinch of salt when reheating leftovers.