I have spent time with expatriots in several countries and without exception they had their favorite condiments shipped "from home".
I spent from 2001-2018 roaming the world (Mostly places that touched the Indian Ocean, Western Pacific [N & S])& the Philippine Sea, making 14 trips through the Panama Canal. I mostly have traveled by ship.
I do not know anyone who went that far to get their condiments (now, in Japan, S. Korea & some other places there where US Bases, so...)
In South Korea, I (as I had access) got Italian Sausage from a US Base (as [other than local] as I could only find German sausage and meats) in where I was at in S. Korea).
I just ate local & local home cooking (or on the ships I traveled on).
Even in Chongqing China, just local food.
I will say that I did not like Korean food in the big cities (and will not go to a Korean restaurant today). In the country, at someone's home: great.
Allergies to seafood is a problem for me. But I managed.
Japanese food I can also do without.
Singapore, Thai & Chinese are favorites. From my travels in Europe (during 1963-1999), German, Austrian & Italian food stick out as great.
In all my travels, sometimes I just craved a can of Chef-Boyardee (
Ettore Boiardi (October 22, 1897 – June 21, 1985), also known as
Hector Boyardee, was an
Italian-American chef, famous for his eponymous
brand of food products, named
Chef Boyardee) Beefaroni (but I always stocked up before I left the USA).
In some places there are now "Asian Fusion Restaurants". My wife is Asian: we have not run into one such restaurant that either of us likes. Not in San Diego, Charleston, SC, Guam or anywhere else that we travel to these days.
Maybe because I did not stay in one place longer than a month or three, I did not run into this.
Also, I mostly associated with locals as opposed to expats.