Slice the slicers in half. Spread mayo and mustard on the sliders, top each half with ham and cheese, and close the slider.
Pack it for lunch:
Place the sliders inside a lunch container. In another compartment or separate snack box, pack healthy sides like fruit and veggies. Pack any dips inside a separate compartment or small lidded container.
Keep the lunch and sides refrigerated until you place it inside the lunch bag with an ice pack, if necessary.