What is a key ingredient in the Turkey Pastrami sandwich?

In a Turkey Pastrami sandwich, the essential focus is on the turkey pastrami itself, which provides the primary protein and flavor profile of the sandwich. While coleslaw is often used in various sandwich recipes to add crunch and flavor, it is not a defining ingredient of a Turkey Pastrami sandwich.

The key ingredient that brings the dish together, in this case, is the turkey pastrami, which is seasoned and cured turkey that serves as the main component. Other condiments like dijon or 1000 Island dressing may accompany the sandwich but do not define its central character as much as the turkey pastrami does. Therefore, recognizing the pastrami as the key ingredient helps clarify what makes this sandwich unique and distinguishes it from others.