If youβre looking for a new sandwich for lunch, we like to think youβre in the right place. With our delicious French brioche bread burger buns, you can make a plethora of different and delectable sandwiches. In this case, we present to you our recipe for roast beef sandwiches! Itβs as simple as meat, cheese, and onions, but this sandwich packs a flavorful punch. The caramelized onions just burst with flavor! so without further ado, hereβs the recipe!