Add the quinoa and mix well before adding the tomatoes and stock. Bring to a boil and reduce heat. Cook the mixture at a simmer for about 10 minutes. Add the carrots, cabbage and white beans. Cook at a simmer for another 10-15 minutes.
Add the green beans and cook for another 2-3 minutes. Salt and Pepper to taste. Turn of the heat and cover the soup with a lid until you're ready to serve.
Serve the soup with fresh herbs and parmesan cheese.