Well, they certainly researched Dutch food, even though oliebollen are generally eaten at fairs (kermissen) and on New Year's Eve only. In addition to our rather limited Dutch cuisine, we tend to eat Italian, French, Indonesian (slightly adapted to Dutch taste), Thai, Japanese, etc. food. And Belgian-inspired fries. And if you like beer: there's a healthy upsurge of small breweries. I think this family will fit in just fine over here.