The following foods have the corresponding effects. Note: The first eleven foods will give a random benefit but will not change your job.

FOOD - EFFECT
HR Bentous - Makes you a Slugger.
Makunouchi Bentous - Makes you a Rakugo Performer.
Picnic Baskets - Makes you a Kana.
Rice Ball - Makes you a Carpenter.
Sandwiches - Makes you a DJ.
Squid Ink Bentous - Makes you a Man In Black.
Steaks - Makes you a Mika.
Sushi - Makes you a Sushi Chef.
Tempura Bentous - Makes you a Diver.
Vegetarian Food - Makes you a Komuso Monk.