To a very large Dutch oven or stockpot, add the oil and heat over medium-high heat to warm.
Add the onion, zucchini, carrots, celery, and sauté for about 10 minutes, or until vegetables begin to soften. Stir intermittently.
Add the garlic and sauté for another 1 to 2 minutes.
Add the vegetable broth, macaroni, tomatoes and juice, kidney beans, white beans, green beans, bay leaves, basil, thyme, oregano, rosemary, pepper, and bring to a boil.
Allow mixture to boil gently for about 15 minutes or until macaroni is cooked through. At any time while making the soup, if the overall liquid level is lower than you like and you prefer more broth, adding a cup or two of water or additional vegetable broth is okay. At the end you will adjust the salt level.
Add the spinach, parsley, optional lemon juice (brightens up the flavor), and boil 1 to 2 minutes, or until spinach and parsley are wilted and vibrant.
Taste soup and add salt to taste. I added about 1 tablespoon but this will vary based on how salty the brand of vegetable broth, tomatoes, and the various beans are, and upon personal preference.
Make any necessary seasoning adjustments (i.e. more salt, pepper, herbs, etc.), remove the bay leaves, optionally garnish with parmesan, and serve immediately.
