Heat olive oil in a large pot over medium heat. Add celery, onions, garlic and carrots. Sauté for 2-3 minutes.

Add cooked chicken, chicken broth, salt, pepper, and thyme. Bring to a boil. Continue to boil for 3 to 4 minutes and then reduce heat, and simmer for 10 minutes.

Then, stir in the gnocchi, half-and-half and spinach, and cook for another 1-2 minutes until the spinach is tender. Add salt and pepper to taste and serve.