Which sandwich is served with cajun beer batter?

The sandwich served with cajun beer batter is indeed the Crispy Fish Sandwich. Cajun beer batter refers to a flavorful frying technique that combines cajun spices with a beer-infused batter, giving the fish a crispy and seasoned exterior. This method not only enhances the texture of the fish but also complements its flavor with a zesty kick typical of cajun cuisine.

In contrast, the other sandwich options do not utilize cajun beer batter. The Croissant Chicken Salad Sandwich typically consists of a chicken salad served inside a flaky croissant, focusing on a creamy and savory filling rather than a fried element. The French Dip Sandwich features roast beef and often includes a au jus for dipping, without any frying or battering involved. Lastly, the Truffle Croque Monsieur is generally a gourmet ham and cheese sandwich baked with a béchamel and topped with truffle oil, significantly diverging from the cajun influences present in the crispy fish sandwich. Thus, the use of cajun beer batter is distinctly associated with the preparation of the Crispy Fish Sandwich.