I've adapted this one from a cream cheese company.
In a slow cooker, I put together a couple of frozen chicken breasts, at least one spoonful of pesto per chicken breast, and a couple tablespoons of any cream cheese I have at the time, including flavoured cream cheese.
Turn the slow cooker on low, walk away for a couple of hours. I return once to stir the pesto and cream cheese, and turn over the chicken.
The result is a creamy pesto chicken with slight hints of whatever flavour was in the cream cheese.