"Ya could say that. If ya do it enough, it's just another thing ta grow use to." He done more than his fair share of cooking when traveling with Brave Vesperia. Enough so that his skill level had grown to be what it is now. If she was planning on cooking most of the meals, she would get use to it in time at all.

"Now's a good time fer that tomato."

He won't bother to warn her about its spillage though. Unless the thing was dry, it was impossible to cut a tomato without getting it all over the board. That's typically why he saved it for last.

When she's finished with that, he'll proceed with the instruction that followed up. Along with warming up the pan and preparing the sauce mixed. Before that, she'll want to make sure her vegetables are cooked. Typically raw vegetables didn't taste as good in a curry.