They are filled with thinly sliced cold cuts (especially ham), hard-boiled eggs, cheese, tomatoes, bell peppers, tuna, lettuce, and sometimes other vegetables such as asparagus. Butter or mayonnaise is another important ingredient.
These sandwiches include thinly sliced meats (mainly ham), hard-boiled eggs, cheese, tomatoes, bell peppers, tuna, lettuce, and sometimes other vegetables like asparagus. Butter or mayonnaise plays an important role in their preparation.