Codename: Kids Next Door - Season 1 - Eps 14: Operation: L.I.C.E.
The Delightful Children From Down The Lane attack Sector V's headquarters with an infestation of hair-eating lice. After the KND find out they don't like nacho cheese, they decide to shoot nacho cheese at them to get rid of them.
About Codename: Kids Next Door

Title: Codename: Kids Next Door
First Air Date: 2002-12-06
Last Air Date: 2007-11-23
Status: Ended
Rating: 8.2/10 (from 731 votes)
Language: EN
Seasons: 7
Total Episodes: 139
Network: Cartoon Network
Genres: Animation, Action & Adventure, Comedy, Sci-Fi & Fantasy, Kids, Family
Production Companies: Curious Pictures, Cartoon Network Studios
Synopsis
Taking numbers instead of names, five extraordinary 10-year-olds form a covert team called the Kids Next Door with one dedicated mission: to free all children from the tyrannical rule of adults.
Cast

Ben Diskin
Numbuh 1 / Numbuh 2 (voice)

Lauren Tom
Numbuh 3 (voice)

Dee Bradley Baker
Numbuh 4 (voice)

Cree Summer
Numbuh 5 (voice)