War Boys are pretty shaky on the concept of 'cooking' to begin with, so that might be the root cause here. Maybe he should figure that out at some point: during the arena thing, food just, you know, appeared! Like magic!

"First aid?" Blink. "No, oh, no. It's fine. Burned fingers lots of times doing repairs." Hot engines, you know. He holds out his hand to show it. "Nux. I'm Nux."