Creating a bowl of Creamy Italian Meatball Soup can be quite simple by following these steps:

1. Prepare the Meatballs: In a large bowl, combine ground beef or turkey, breadcrumbs, Parmesan cheese, egg, garlic powder, Italian seasoning, salt, and black pepper. Mix thoroughly until well combined.
2. Shape Meatballs: Form the mixture into small meatballs, about 1 inch in size. Set them aside on a plate.
3. Cook the Meatballs: In a large pot over medium heat, add a splash of oil. Brown the meatballs in batches for 5–7 minutes, turning them until they are golden on all sides. Remove them from the pot and set aside.
4. Sauté Vegetables: In the same pot, add chopped carrots, celery, and onion. Sauté for 3–4 minutes, until the vegetables soften.
5. Add Broth and Tomatoes: Pour in the chicken or vegetable broth and add the diced tomatoes (with their juice). Stir well.
6. Return Meatballs: Carefully add the browned meatballs back into the pot. Bring the mixture to a gentle boil, then reduce the heat and simmer for 20 minutes.
7. Incorporate Cream: Stir in the heavy cream, ensuring it combines with the broth. Allow the soup to heat through, about 5 minutes.
8. Add Spinach: Just before serving, stir in the fresh spinach and let it wilt for a couple of minutes.
9. Adjust Seasoning: Taste the soup and adjust the seasoning, adding more salt and pepper if needed.
10. Serve Immediately: Ladle the soup into bowls and garnish with fresh basil leaves for an aromatic finish.

This simple process results in a creamy, flavorful soup that’s bound to become a staple in your household.