Wrap your sandwich in a paper towel and cook in the microwave for 30 seconds. This will loosen the cheese and ham from the bun so you can begin assembling.
Remove the ham and place the cheese on the side of the bun already prepared with mayonnaise. Spread the fig jam on the other half of the bread, and top with onion slices.
Place the ham on top of the onions and get ready to toast.Airfryer Method: Load into your air fryer. Note: If your air fryer tends blow around lightweight items (most do), reassemble the sandwich allowing the bread to anchor the toppings from movement. Cook for 8 minutes at 370 degrees and remove using a spatula. The cheese becomes bubbly and the ham gets a bit broiled and crispy (reminiscent of bacon.)Conventional Oven Method: Preheat your oven to 400 degrees. Place your sandwich on a baking sheet prepared with cooking spray. Cook for 13-15 minutes until your cheese bubbles up and the bread becomes toasted.
Top with arugula, and assemble the sandwich. Allow the sandwich to cool for a few minutes before eating as the jam will be super hot from toasting.
Serve and enjoy!