This cheese and spinach smothered chicken in Crockpot recipe is just 304 calories!Enjoy this filling main course with a slice of rustic bread, alongside a salad. Or slice and add this slow cooker chicken breasts with tomato and spinach over pasta.This low calorie crockpot chicken recipe is easy and packed full of protein (56.1g of protein!) plus it's flavorful and so easy to make!