Hawks doesn't want to deal with the kids and need a distraction and throws Dabi under the bus saying that the kitchen is on fire because Dabi is a bad cook

Dabi: if I'm such a bad cook, then you make lunch [halfway done making lunch]

Hawks: I-

Dabi: [gives hawks the kitchen utensils] bye

Hawks: Dabi-

Dabi: [already gone]

An hour and a half later

The kitchen is on fire, food very burnt, two sad children

Dabi: what the-

Hawks: Dabi

Dabi: 😒 what?

Hawks: I-

Dabi: not my problem

Hawks: but-

Dabi: you said I'm a bad cook so why would you want me in the kitchen 😒💅