[They had similar educational backgrounds - or lack thereof. Nico decided a while back that he wanted to know what he had missed, and started attending more classes. And when there were no classes for what he wanted to learn, he found someone to teach him anyway.
[He already has an idea of what he wants, so it doesn't take long to pick out the carrots, broccoli, and cauliflower, and make sure there's enough for two.
[And when Duo arrives with the chicken, he motions for the exit.] This is good, unless you need anything else.