Anywhere? Obviously Club 33, only been once but I reminisce about it often.
More realistically, Café Orleans is a big favorite of ours, nice place to have dinner and not too expensive. It's a sit down restaurant though so you'd need to make reservations. For a quick service place, I'd say Rancho Del Zocalo for Mexican food, Pizza Port for pizza/pasta/salads. I'm gonna take a wild guess and say your young ones love pizza so Pizza Port would probably be a big hit.
In California Adventure, we love Flo's V8 Café! Its a quick service place in Cars Land, love of good eats like homemade mac and cheese, turkey French dip, roast beef sandwiches. Also you can't go wrong swinging by the Pier, there's 3 restaurants there: Mexican, Chinese and a bread bowl place. Just in case everyone wants different things.