Spray crockpot with nonstick cooking spray. Place chicken in crockpot. Sprinkle with zesty seasoning.
Combine cream cheese, butter, black pepper, sour cream, ranch dressing, sour cream, ranch dressing mix,cream of chicken soup and chicken broth. Mix well with whisk. Add mushrooms, bacon bits, and flour. Whisk until smooth.
Spread mix over the chicken. Cook on low for 4 - 6 hours.