Disclaimer: Naruto belongs to Kishimoto-sama not me.
Being a dad means understanding that food stolen off your plate tastes better to your kids than any other food in the world.
Gaara was the type of kid who always ate whatever was on his plate. He was the type of kid who grew up into the type of man that always ate what was put in front of him. It didn't hurt that his taste in food were different than everyone else's. Imagine to his surprise and pride when little Tomo(Zen as his friends and family and in general the world calls him) after grasping the concept of chewing and other things needed to eat solid foods fell in love with salted tongue and gizzard just like his dear old dad.
"You have brainwashed my nephew." Temari declared as she entered the dining room with a plate full of normal food.
"What?" Gaara asked looking up from his reports in time to see Zen's little plastic fork reach for his plate of tongue and gizzard.
"Hello Daddy." Zen gave a cheeky smile.
"You know what? I'm only going to let you eat these, so you can gross out Aunt Temari."
Author's Note: The last line seemed something that Kankuro would say and not Gaara. But I know that having kids seriously messed up Gaara's way of thinking and since this is mpreg I'm allowed to get crackish once in a while.
I personally think I do a good job of staying true to the characters' personalities.