There was a nod, more of appreciation than of belief. Even though Dean hadn't shown signs of recognizing her, part of her was still afraid this Dean had already somehow been to 1973 and knew exactly what it was she had done, that she was the reason they'd had so much trouble with this particular demon.
She finished off the sandwiches, folding the bread in half instead of placing a slice on top. "I hope this is okay for lunch. My mom used to make them, and sometimes Dad..." Her voice started to crack a little. Maybe it was a long time ago by the standards of the current year, but their deaths were very fresh to her. "Sometimes he would take a few with him when he left for a hunt."
[ooc: I actually got the peanut butter banana thing from my dad. He's about as old as Mary would be if she was still alive xD]