This past thread on the topic might have some ideas for you: https://food52.com/hotline...

We use it for Cuban sandwiches. I make that tenderloin recipe five or six times a year and always set aside a few slices for Cubans. Here is my recipe for Cubans (using pork shoulder https://food52.com/recipes... - just substitute the sliced tenderloin - and you don't need a quarter pound per sandwich. Use your judgment.

Also, I realize this is too late for this one but may be useful for the next, but I always deglaze the pan with some water after serving dinner and save that flavorful liquid for drizzling on the bread when making the sandwiches. ;o)

I agree with AntoniaJames. We used the leftovers to make cuban sandwiches and they were amazing!

Pork tenderloin sliced thin makes a great sandwich, including the already mentioned Cuban. Diced up, it's also a great addition to fried rice or other Asian noodle dishes, stir fried or in broth, like Ramen.

I sometimes used thinly sliced roast pork loin for a variation (instead of veal) on one of my favorites, Vitello Tonnato. Truth be told, I kind of prefer it. But I'd only do this if the honey/mustard glaze isn't too pronounced or can be scraped away.