Heat the olive oil in a large saucepan over medium heat. Add the onion and garlic and cook for 3-4 minutes, stirring occasionally, until the onion is softened.
Add the oregano, thyme, salt, and pepper and cook for 1 minute, stirring constantly.
Add the vegetable broth, tomatoes, white beans, quinoa, zucchini, and parsley. Bring to a boil, then reduce the heat and simmer for 15 minutes, or until the quinoa is cooked through.
Serve the soup hot, garnished with extra parsley, if desired.