Not really surprising, colonialism often includes exchanging foods. Britons are racist towards Indians but curry is popular there. Rijsttafel in the Netherlands is really just nasi padang from Indonesia, and Indonesian restaurants are, I believe, popular in the Netherlands. Obviously there's a lot of French influence on contemporary Vietnamese cuisine (banh mi!) and I wouldn't be at all surprised if it also went the other way. I mean spices were a major reason that south/south east Asia were colonised in the first place.