Your LO would have to be ok with soy though. I haven't tried this one, I've tried the regular cream cheese one and it was amazing.
Vegan cream cheese frosting
12oz soy cream cheese, at room temp
6 tbsp nonhydrogenated butter substitue, at room temp
3/4 cup light agave nectar
1/2 tbsp vanilla
juice of 1/2 lemon
Using electric mixer, cream together cream cheese and butter substitute. Add agave, vanilla, and lemon juice. Beat until smooth and fluffy.