Just a thought - I felt guilty about the kids having to eat differently when I joined the program, but I didn't want to cook two separate meals all the time...
So I modified their dinners with whatever I had cooked for me and they seem to really like it... For example, I made the grilled chicken into nuggets with some light ranch and they thought it was yummy... They also discovered that they like cauliflower (mashed) and broccoli with some light ranch. And, they didn't notice the switch to FF cottage cheese... They also liked the yogurt and seemed to really notice what they were eating, which I think was nice.
I still have one (my 7 year old) who is picky and takes 1/2 bottle of ranch for one broccoli floret, but we're getting there