Let’s talk leftovers. Not food you have made yourself but food you have bought from a takeaway or delivery.
It goes without saying Pizza is the king of leftovers. Hot or cold (obviously cold) it always hits the spot the day after.
It also goes without saying that chips/fries are the opposite. Within 1/2 an hour they are rubbish and can’t be redeemed. Heard someone say they reheat chips in a pan with a bit of oil but I think they were lying.
Fried chicken? Yeah that probably works.
Indian/Chinese - yeah that works but the rice can be dicey. Ricey dicey.