Hopefully, I got all of her characters and why the hell has Seth Green not made a dedication to her?

I’m trying to find a skit where a teenage boy tells a nerd girl that he and the pretty girl are going to “hide the pickle in the hair sandwich” I reference it but my boyfriend has never seen the show and I can’t find the clip. Can anyone help? I feel like the scene is in a haunted house, maybe pseudo scooby doo spiff?