For something fun yet different try Boma at AKL.
Good selection of American food, yet plenty of different choices with African flavor.
Also if you have time do a character meal. Which? would depend on your kids favorite characters. (note: some can take 2 hours of your time to see all the characters that meal, so allow plenty of time.)
Personally our favorite breakfast is Whispering Canyon Cafe. If you get a good waiter, it's a ball of jokes and games with kids. Try the all you can eat platter. And make sure you ask for Ketsup and staws.