Making Sausage Soup is virtually effortless when you follow these clear instructions:

1. Heat Oil: In a large pot or Dutch oven, heat the olive oil over medium heat.
2. Cook Sausage: Add the sausage and cook until browned, breaking it apart as it cooks.
3. Sauté Vegetables: Stir in the onions, garlic, carrots, and celery. Cook until the vegetables are soft, about 5 minutes.
4. Add Tomatoes: Mix in the diced tomatoes and cook for another 2 minutes.
5. Pour in Broth: Add the chicken broth, diced potatoes, thyme, oregano, salt, and pepper.
6. Simmer: Bring to a boil, then reduce the heat and let it simmer for about 30 minutes, or until the potatoes are tender.
7. Add Spinach: Stir in the fresh spinach and cook until wilted, about 2–3 minutes.
8. Taste and Adjust: Adjust the seasoning as needed, adding more salt and pepper to taste.
9. Serve Hot: Ladle the soup into bowls and sprinkle with grated Parmesan cheese if desired.

Following these straightforward steps will ensure your Sausage Soup turns out deliciously every time.