Creating this incredible Creamy Slow Cooker Comfort Meal is straightforward and rewarding. Follow these easy steps:

1. Prepare the Chicken: Add the boneless chicken breasts to the bottom of the slow cooker.
2. Layer the Vegetables: Sprinkle the chopped onion, minced garlic, and frozen mixed vegetables over the chicken.
3. Add Broth and Spices: Pour in the chicken broth, then add the dried thyme, rosemary, salt, and pepper. Stir gently to combine.
4. Cook: Cover the slow cooker and set it to low for 6 to 8 hours or high for 3 to 4 hours. The chicken should be cooked through and tender.
5. Shred the Chicken: Once the cooking time is complete, remove the chicken, shred it using two forks, and return it to the slow cooker.
6. Incorporate Cream: Stir in the heavy cream for that rich, creamy texture.
7. Thicken (Optional): If you prefer a thicker consistency, mix cornstarch with a little water to create a slurry, and stir it into the slow cooker. Let it cook for an additional 30 minutes on high.
8. Serve and Garnish: Once thickened to your liking, ladle the creamy mixture into bowls and garnish with fresh parsley.

Following these steps will have your kitchen filled with delightful aromas in no time!