I once had a really good veggie/cheese sandwich at a mall eatery; I think it was on pita bread, with sprouts, broccoli, tomato, cheese - and ‘cooked’ in a steam box.
Someone gave us one of those Cuisinart griddlers, and I should pull it out and make some of these melty things on it...
-JT
I used to buy a really good cheese sub from a sandwich shop when I was a teen.
It was made with: muenster cheese, mayo, shredded lettuce, tomatoes, onions and oil/Italian seasoning mix. I still make it from time to time when I crave it.