Creating Tuscan Slow Cooker Chicken Stew can be straightforward if you follow these simple steps:

1. Prepare the Chicken: Trim any excess fat from the chicken thighs and season with salt and pepper.
2. Layer Vegetables: In the slow cooker, add sliced carrots, chopped celery, diced onion, and minced garlic.
3. Add Chicken: Place the seasoned chicken thighs on top of the vegetables.
4. Pour in Liquids: Add the diced tomatoes (with juices), chicken broth, and red wine (if using) over the chicken.
5. Season: Sprinkle dried oregano, basil, and thyme over the mixture.
6. Mix Gently: Stir gently to combine, ensuring that the chicken is covered with the liquid and vegetables.
7. Cook: Cover the slow cooker and set it to low. Cook for 8 hours or until the chicken is tender and fully cooked.
8. Add Greens: About 30 minutes before serving, stir in the chopped kale or spinach.
9. Shred Chicken: Once cooked, remove the chicken and shred it using two forks. Return the shredded chicken to the stew and stir to combine.
10. Adjust Seasoning: Taste and adjust seasoning with more salt and pepper if needed.
11. Serve: Ladle the stew into bowls and garnish with fresh parsley.

These steps will guide you in creating this incredible stew effortlessly.