Creating this incredible Chicken Florentine Soup is straightforward. Just follow these simple steps:

1. Heat the Oil: In a large pot, heat the olive oil over medium heat.
2. Sauté Vegetables: Add the chopped onion and garlic, cooking until the onion is translucent.
3. Cook Chicken: Add the diced chicken to the pot and cook until browned on all sides.
4. Add Broth: Pour in the chicken broth, bringing the mixture to a simmer.
5. Season: Stir in the thyme, oregano, salt, and black pepper.
6. Add Vegetables: Add the carrots and celery, cooking for about 10 minutes until softened.
7. Incorporate Cream: Slowly stir in the heavy cream, allowing it to heat through.
8. Add Spinach: Fold in the chopped spinach, cooking until wilted.
9. Optional Pasta: If using, add the cooked pasta and stir to combine.
10. Serve: Ladle the soup into bowls and top with grated Parmesan cheese.

These straightforward instructions will lead you to a delightful bowl of Chicken Florentine Soup!