Requires maybe 15 minutes of planning before your trip. You pick a place with food nearby, get out for 30 minutes, stretch, eat your meal, and you are good until the next meal.
It assumes when you want to eat coincides with when you need to charge. It assumes there's something you want to eat within walking distance of the charging station. Also assumes you eat as often as you charge. I almost never find any of those to be true.