When traveling, if I have access to a fridge and a small kitchen I will tend to go to a supermarket or deli and get a few prepared items (fresh salads or mashed potato), maybe some stuff like the Korean microwaveable rice and some canned items.
It makes the in-between meals so much easier. From traveling with my parents I’ve also learned how to make approximates of various Malaysian / Singaporean foods with an assortment of spice packs we bring (they travel with their own rice and mini cooker..)
There are some places where travel means ‘eat out 7 times a day’ (Taiwan, Indonesia, China, Malaysia, India..)
And some that are very much not that sort of place.