Possible Clues:

• Short-order orders
• Usually toasted sandwiches, for short
• Layered lunches, for short
• Crunchy diner sandwiches, familiarly
• Multilayered lunches
• Short-order sandwiches, for short
• Sandwiches with meaty strips, for short
• Slugs
• Crispy sandwiches, for short
• Orders on toast