Heat the olive oil in a soup pot. Add onions, celery, and carrots with salt and stir to coat. Cook 5 minutes, should begin to soften.
Add the broth and bring to boil. Once boiling cover and reduce heat to a simmer. Cook until vegis tender. Add spinach and tortellini. Cook tortellini per package instructions. Add parsley and black pepper.
Serve topped with a little parmesan.