Place chicken breasts in the bottom of the crockpot
In a bowl, whisk together mushroom soup, chicken broth, Italian seasoning mix, black pepper, and garlic if using
Pour sauce over chicken and top with butter slices
Cover and cook on LOW for 4½–5½ hours, until chicken is tender and cooked through
About 20–30 minutes before serving, add cream cheese cubes
Cover and let soften, then stir until smooth and creamy
Shred or slice chicken and stir back into the sauce
Cook angel hair pasta according to package directions and drain
Serve creamy chicken over pasta and garnish if desired
