- Add celery, onion, carrots, garlic, green beans, Italian seasoning, tomatoes, chicken stock, salt, pepper, and bay leaves to a slow cooker and cook on low heat for 6-8 hours or high heat for 3-4 hours.
- Add in the cannellini beans, zucchini, and pasta and cook on high for 20 minutes.
- Serve hot and top with parmesan cheese.
- Note: If you are using frozen or canned green beans, add them in step two instead of step one.