Toasted???? Growing up in Reading MA, the go-to place for Italian sub sandwiches was Gregory's on Main St. I never heard of a toasted Italian sub. Good fresh rolls don't need to be toasted. If someone asked for mayo rather than oil, Lou or whoever was making the sandwich would roll the eyes. When they would say "Next", it was large or small Italian with hots, or no hots.
What I would do to go back in time to go to Gregory's with Dad to get two large Italians with hots, and a small tuna sub for Mom. That was a good no-cook dinner for 3.
Dave