What is good to pack for lunch from home?

Hi folks!

One day my male colleague suddenly asked me, "What is good to pack for lunch from home?" 

I gave it a thought and replied, "Anything you like eating."

'Cos that's how I planned my meals albeit according to what 

my family loves to eat, easy to prepare and still taste good

after few hours in lunch container, like this konlou noodles, an 

all-time favorite for KY which still taste good when not very "warm".

Other items are like sushi, onigiri, sandwiches and hot soup in thermos

and goes with rice or noodles ;) List still expanding while experiment and search 

still on-going...

Now what are the food you find great as lunch pack? Care to share?

Thanks in advance!

Cheers :)

Sent from my iPhone