I honestly would just guesstimate the amount of each item and then log the closest thing that you can find in the MFP database. For example, 3oz turkey, 2oz provolone, 2 slices tomato, etc should all have equivalent entries in the database.

Also, just for next time, I'm pretty sure Jersey Mike's does a lettuce wrapped sandwich if you ask, at least my local one does.

I'd just enter a couple ounce of deli turkey meat, the same for the cheese, less for the lettuce tomatoes, etc. All depending on how much you think you probably ate. My opinion is Jersey Mike's makes a pretty "meaty" sub compared to some of the other franchised sub places. I'll bet their slices of cheese are ~.5 ounce versus a standard slice at a grocery store deli which is an ounce. 2 or 3 half ounce slices would give the illusion of "more cheese". Trick the eye marketing.

I made a lettuce wrap at home today that was 5 ounces of lettuce, 3 ounces of ham, a couple slivers of onion, a big pickle slice and some mayo. All to say that would give me an advantage to estimating a deconstructed Jersey Mike's sub. Maybe. My 5 ounces of lettuce is my "trick the eye" into thinking I ate more.

i bet you could put in ham with cheese sub without bun ..... just a suggestion not actual sandwich .... LOL i do that with burger kings bacon cheese burger without bun .