Shepard never doubted that Zeto will agree to her terms, but she was still glad when she heard it from Quarian own "lips". If Zeto really was as good as she said, she could be a great asset to the team. Chakwas was terrific in her job, but still... it never really hurt to have another medical genius on board. 
"I have no problem with you staying here, there after all isn´t a better place for medically skilled person in here. And I am sure dr. Chakwas won´t mind it either. She is pretty open mind in these things and I am sure she will appreciate any help she gets. You will just have to figure out details with her." 

She wanted to add something else, but her attention demanding stomach interrupted her. Only now, Shepard truly noted, how hungry she actually was and almost blushed, embarrassed. 
"Sorry," she apologized, than a thought came on her mind. Qurian was probably as hungry as she was. Well maybe not quite as hungry as Shepard, she was biotic after all, but still... she had to be starved to the death.
"I am going to eat something. Would you mind joining me? I am not sure what exactly do you Quarians eat, but we surely have some non-human food in here."
Shepard hoped that Qurian will go with her. She always tried to have close relationship with people she served with, and there was no better place for a little chat than a dinner table. She also hoped that speaking will divert Zeto´s attention to something else than death of her crew.