I do like the Bento boxes theoretically. There are some very appealing ones. I feel quite bad about my youngest not having a warm lunch in winter and have considered buying them - but then I remember that he doesn't want warm food - he's massively fussy and won't eat school lunch regardless of peer pressure, he just went hungry when we tried, which is why he takes a packed lunch.
He wants a cheese or salami sandwich, an apple, a raw carrot and a yogurt, and I'd actually be buying the box to virtue signal to myself that I'm being a thoughtful and caring parent while actually causing myself hassle and expense to give him a lunch that looks better to outsiders but isn't what he wants to eat, and will probably come home virtually untouched, whilst giving him more to carry/ potentially misplace.
My daughter takes hot food in her SHO food flask. She takes soups, pasta, chicken casserole etc. All still piping hot at lunchtime. A pancake is an odd thing to try and keep hot - can they not have something else?
Psychobabble123: He wants to take pancake once a week. DontCallMeJohnBoy , my pancakes are more like crepe. I use egg, wheat flour, milk, jaggery and 2-3 bananas to make a paste. I don't make thick pancake style but like crepes by spreading in on whole pan. He loves to eat with honey.