The Luxembourg Ardennes Restaurants

1. Flux

Hear us out. The location isn't all that promising (next to a petrol station), but this takeaway burger joint is popular for good reason: it's good. When you can grab petrol and an Aberdeen angus, rosti, and raclette-cheeseburger at the same time, who needs to dine in. The enthusiasm of visiting touring motorcyclists might have boosted its profile, but this is a true guilty pleasure just a few miles south of town, and there isn't much else in the area.