I don't know, I usually need at least some tomato with a sandwich like that, otherwise it's too dry for me.
Not exactly ‘expensive’ but .... All summer long I’ve been going to my butcher and getting a full tenderloin, untrimmed. You can get em at Costco for about $80-120 depending on the size. But I got me a HUGE cutting board and a sharp as fuck knife and I learned how to trim it proper. Out of $100 tenderloin I got 10 x 5 oz filet mignon And then with the rest I made what amounted to 15 servings of steak fried rice. Huge amount. AND Still has enough trimmed meat (chateaubriand part of the tenderloin) to make carne Asada tacos for 4 people. I pitched the rest of the silver skin and fat but I hear you can make stock or burgers with it...haven’t tried that. My kids eat like motherfuckers and so We need to keep that fridge full of healthy stuff.
Not expensive but so good .... https://www.10best.com/interests/food-culture/a-history-of-the-banh-mi-the-worlds-favorite-sandwich/ Crispy duck sandwich