Which sandwich does NOT automatically include mayo?

The Dagwood sandwich is typically characterized by its generous layers of various meats, cheeses, and toppings, and it does not automatically include mayonnaise as part of the recipe. This allows for customization based on personal preference; customers can choose to add mayonnaise or other spreads if they desire. In contrast, the other options, like the Cordon Bleu, Club, and Italian sandwiches, traditionally include mayonnaise as a standard ingredient or component of the flavor profile. Therefore, recognizing that the Dagwood allows more flexibility in toppings helps clarify why it does not automatically come with mayonnaise.