What should be done before serving a sandwich from the oven?

Before serving a sandwich from the oven, it is important to ensure that it is placed in a basket with a spatula. This step is essential for maintaining food safety and proper presentation. Using a spatula allows for safe handling of the hot sandwich, minimizing the risk of burns. Additionally, placing the sandwich in a basket helps ensure that it is served in a manner that is hygienic and easy for the customer to manage.

In contrast, simply letting it sit on the counter may not address the risk of burns or cross-contamination. Cutting the sandwich with a knife could also pose safety concerns if the sandwich is too hot to handle safely. Asking the customer if it's ready does not contribute to the proper serving technique. Each of these alternatives lacks the focus on safety and presentation that using a spatula and basket provides, making the chosen approach the most suitable.