https://www.mumsnet.com/talk/am_i_being_unreasonable/5347862-people-who-expect-british-food-on-a-foreign-holiday?page=9&reply=144760434
I suspect that this woman and similar who refuse to eat 'that foreign muck' has not even sampled it. A friend's DF (no longer with us) was like this woman. He even didn't want to know about Spanish omelette which is omelette with onion and potatoes. He ate onion and potato in a savoury pasty or pie. Eggs he ate in various forms.