Add oil to a large pot over medium-high heat. Add onions, celery, carrots, and sautee for about 5-7 minutes or until vegetables are soft. Add tomato paste and stir well.
Add zucchinis, diced tomatoes, vegetable broth, Italian Seasoning, beans, bay leaf, and stir well. Bring to a boil, cover and simmer for 15 minutes.
Uncover, remove bay leaf, add cooked pasta and parsley and stir well. Serve and enjoy!