Chef Boyardee

There are three commercials with one of them where a boy turns into a monster and turns back to normal when he eats the raviolis with the other two where a man turns back to normal when he eats the raviolis and a girl turns back to normal when she eats macaroni and cheese.

https://www.youtube.com/watch?v=iifqy6Lgq-0

https://www.youtube.com/watch?v=3adq-ftT5WI

https://www.youtube.com/watch?v=z5nbmBkSfls