[Katsuki raises an eyebrow when he's asked what's wrong with Shoto's cooking. Isn't it obvious??]

You're so used to it you can't see that he doesn't use enough spices? Or that he cuts the vegetables all wonky? Or undercooks meat sometimes?

[Shoto does do his absolute best, and it's not like it's inedible. But Katsuki feels like they deserve so, so much better! Especially Shoto himself!]

I mean, he's way better than he was back home. Back then, he didn't even know how to cut chives so he's improved a lot. But I still think the both of you could use someone more experienced in the kitchen.