Mmm mmm! I always wanted to be a pizza chef. Watch this.
5 seconds sound clip from Scooby-Doo, Where Are You! - The Backstage Rag (S1E9).
You can hear this line at 00:01:57.415 in the Blu-ray version of the episode.
Quote context
[...]
- It's Scooby! And he found the mummy!
- Well, gang, I guess that wraps up the mystery and the mummy, too.
- Say, Scooby, kind of a spooky night, huh?
- Mmm mmm! I always wanted to be a pizza chef. Watch this.
- Well, thanks for leaving my finger.
- Hey, maybe that's the gang in the Mystery Machine.
- Hey, mister! You lost something!
- I guess he didn't hear me. Let's go see what it is.
- It's a violin case. It feels kind of heavy.
[...]