Melt butter in a large dutch oven or skillet over medium heat. Add Mirepoix ingredients: onion, carrots, celery, garlic and cook until tender (for about 5 minutes).
Add flour and cook for about 3 minutes, stirring occasionally.
Add low sodium chicken broth into the mirepoix and flour mixture, stir until well blended.
Pour in heavy cream and Kielbasa Sausage into the pot and bring the soup to simmer for about 5 minutes.
Stir in tortellini pasta, cover and cook until the pasta is tender or according to the product packaging.
Once the pasta is fully cooked add fresh spinach and stir for about 1 minute. Season with salt/pepper or add more low sodium chicken broth, heavy creamy or water if needed. Remove from the heat and serve.