Which of the following is NOT part of the preparation process for the sandwich?

Adding vegetables is typically a crucial component in the preparation of many sandwiches, as it enhances flavor and texture, making the sandwich more appealing and nutritious. The preparation process generally includes changing gloves to maintain hygiene, toasting the bread to achieve a desirable texture and flavor, and adding the main ingredients, such as chicken salad, which is central to the sandwich.

Involving various ingredients like vegetables helps create a balanced and flavorful product, which aligns with customer expectations at Dunkin' and reinforces the quality of the food being served. Each component plays a significant role in ensuring that the standards for freshness and taste are met, while procedures like changing gloves are necessary for food safety. Thus, adding vegetables is integral to the preparation process of the sandwich.