01 -
Place boneless skinless chicken breasts at the bottom of the slow cooker and season generously with salt and black pepper.
02 -
In a separate bowl, whisk together cream of chicken soup, chicken broth, heavy cream, diced tomatoes, Italian seasoning, and garlic powder until smooth. Pour mixture evenly over the chicken in the slow cooker.
03 -
Cover and cook on low for 6 to 8 hours or on high for 3 to 4 hours, allowing chicken to become tender and easily shreddable.
04 -
Remove lid and shred chicken directly in the slow cooker using two forks, mixing it thoroughly with the sauce.
05 -
Meanwhile, bring a large pot of salted water to a boil. Cook spaghetti until al dente, approximately 8 to 10 minutes. Drain and set aside.
06 -
Add drained spaghetti to the slow cooker and gently toss to fully coat pasta with the creamy chicken sauce.
07 -
Sprinkle sharp cheddar cheese over the top and allow it to melt slightly before serving. Optionally garnish with fresh parsley or red pepper flakes.