Sub sandwich has many names

Don't you just love a great sandwich? I think it is the most satisfying lunch food and a complete and easy meal. The other day, I was in a local sandwich shop, and I couldn't believe the variety of choices. While I was waiting, I observed a sandwich being made. It had everything in the shop on it. On top of that, it was toasted and cheese was melted on top. It was huge, and I'm not sure how that person was going to eat it. I hope he had some help. I'm not that adventurous. I usually order turkey, lettuce, tomato and onion with a little mayo and dressing on the side. Sometimes I add a slice of cheese. I know ... boring.