Cassian was in essence anti-Empire before it even became the Empire. He spent the first few years of his life in the Outer Rim, in a Separatist anarchist cell. He sees the potential to even tell her one day. Not in detail - but if she's just as disloyal to the Empire as he is, his childhood will help.

Apparently even that can be weaponized for the Rebellion, but he's trying not to think about it. When she steps back and accepts his answer, he nods at her.

He and his droid follow her out, and Cassian takes K2's silence as a sign of data analysis. A perk of Coruscant being so bustling. "There's little I won't eat. I'm sure this planet has quite the variety. Do you have any favorites?"

It's as true as it is fishing for what she likes to eat.