Start by chopping your onion, celery, and kale. Mince the garlic and drain and rinse the beans.
In a large skillet, heat the extra virgin olive oil over medium heat. Add the chopped onion, celery, and garlic, sautéing until the vegetables are softened and fragrant, about 5-7 minutes.
Transfer the sautéed mixture into your slow cooker. Add the raw chicken breasts, quinoa, dried thyme, crushed rosemary, and the low-sodium chicken broth. Season with salt and freshly ground black pepper to taste.
Cover the slow cooker and set it to cook on low for about 6-7 hours or on high for 3-4 hours, until the chicken is cooked through and tender.
Remove the chicken breasts from the slow cooker and shred using two forks, then return the shredded chicken to the pot.
Stir in the drained and rinsed beans, chopped kale, fresh parsley, and lemon juice. Allow to cook for an additional 15-20 minutes until the kale is wilted and tender.
Ladle the soup into bowls and top with finely shredded parmesan cheese. Serve and enjoy!