Creating this wonderful vegetable soup is as straightforward as it is delicious. Follow these simple steps:

1. Heat Oil: In a large pot, heat the olive oil over medium heat.
2. Sauté Aromatics: Add chopped onion and sauté for about 3-4 minutes until softened. Include the minced garlic and cook for an additional minute.
3. Add Vegetables: Stir in the carrots, celery, and bell pepper. Sauté for another 5 minutes until they begin to soften.
4. Incorporate Zucchini and Beans: Add diced zucchini and green beans to the pot, stirring well.
5. Add Tomatoes & Broth: Pour in the diced tomatoes with their juice and the vegetable broth.
6. Season Soup: Stir in dried thyme, dried basil, salt, and pepper. Bring it to a simmer.
7. Cook Until Tender: Let the soup simmer for about 20-25 minutes until all vegetables are tender.
8. Add Greens: In the last 5 minutes of cooking, stir in the spinach or kale until wilted.
9. Finish with Lemon Juice: If desired, add lemon juice for a burst of brightness before serving.
10. Serve: Ladle the soup into bowls and enjoy!

These simple steps will help you create a pot of vegetable soup so delicious that you’ll want to share it with everyone!