Charles: burger in a sandwich!
Charles is a sandwich restaurant in the heart of Luxembourg city.
The place itself is very nice, small, decorated with old 'puffy' chairs and a wall fully dedicated to sandwich portraits.
The menu offers a selection of tasty sandwiches and burgers, but if you decide to opt for the second one, I strongly recommend to have it served in a half-baguette. You won't regret it!
This is the case with my favorite 'The Blue Burger', prepared with home-made ranch sauce, mustard, jalapeños, red onions and blue cheese.