What are the best ways to use aluminum foil facing in a sandwich?

The best ways to use aluminum foil facing in a sandwich include: 1) Wrapping the sandwich to keep it fresh and prevent it from drying out, especially when storing for later. 2) Using it as a makeshift 'grill' by placing the sandwich between two sheets of foil and toasting it in a panini press or on a stovetop for a crispy exterior. 3) Creating a foil pouch by sealing the sandwich in foil, which can be used for cooking sandwiches in an oven or on a campfire, keeping the ingredients moist and tender. 4) Using foil to press down on the sandwich while grilling or toasting, ensuring even heat distribution and a uniform texture. Always ensure the foil is food-safe and does not come into direct contact with the sandwich's fillings to avoid any potential contamination.