I had very little trouble transitioning my kiddos to primal. We make smoothies, smoothie popsicles, and they dip their chicken in salsa or homemade ranch type dip. They love bacon so that helps lol, and we pretty much just involve them in food choices and prep. Sometimes they ask for foods they get at Grandma's house, and I just say "Oh, those are treat foods, not foods that make us strong. We don't eat them everyday, just once in a while." That seems to be fine with them. I don't want them to be food phobic, or little primal fundamentalists, so we don't stress it if they go to a play date and have candy or mac and cheese. Here, they eat good food.
Some of their current faves are:
Snack platters: a platter piled with fresh veg, fruit, cold chicken, hard boiled eggs, nuts and cheeses.
Roll ups (Thinly sliced ham rolled up with grated cheese, lettuce, chopped tomato...)
Canned tuna mixed up with a bit of homemade mayo scooped into bell pepper quarters
soups (we eat a lot of homemade soup)
Steak and veg
chicken fingers (dipped in egg and crushed porkrind mixed with parmesan cheese baked)
primal meatballs in marinara (recipe off MDA)
spaghetti squash lasagna
For sides they love broccoli or cauliflower with my primal cheese sauce, or sauteed in butter. Broccoli is their favorite actually! lol and sweet potato anything.
Basically, in the beginning I would offer lots of options and selections of primal food, and not stress if there are some tantrums. They'll get over it.
The more I see the less I know for sure.