A homemade veggie cream cheese is a delicious and easy way to sneak some vegetables into your kids' sandwiches, but if you're worried they won't go for it, blend it all up instead in a food processor and they won't suspect a thing. I've only used carrots and celery here, but you could also add some finely diced red pepper, radishes and spring onions and try swapping the parsley for chives or dill.
LIGHTEN UP!
If you're watching your fat intake, use low-fat cream cheese.