Not sure if this is fast food or not, but this is the Montreal Beef sandwich (slow smoked and with a side of Brunswick stew) at Fox Bros BBQ here in Atlanta. They only have it on Tuesdays. Tried it today for the first time. It is probably the most tender beef I have ever had. It's stacked thick, and I thought I was gonna have to bite my way through it hard, and my teeth went through it like soft butter. I was actually shocked at how tender it was.
First pic is the one they publish, second is what I actually got.
That is not one huge piece of beef, it's actually slices stacked together.
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