Cassie couldn't help but grin at the compliment because, really, as far as she was concerned she and the Young Avengers were the real deal. Like he said, they'd fought aliens and Kang and they'd even been caught up as rebels (at first, in Cassie's case) in the war. It was just too bad there was no way to make Steve and Tony understand all that.
"I'm pretty sure they still see me as their Cassie, you know? A little girl. That died. I guess I get that they don't want me to get hurt, it's just annoying." Their order was called and Cassie gestured for Peter to go and grab it- hey, she'd paid after all. When he got back she started munching on french fries and asked conversationally, "So do you still have school or what?"