L u c i f e r
You both just take turns with help and who cooks. On special occasions though like when he's tired or stressed, you cook since you want him to be happy. Of course there are times he tries to resist your generosity but you still get your way in the end.

"Y/n, I do not need to be babysat due to the reason I am tired"

"No, I'll ask you nicely to please sit down and relax, I'm really worried about you" You said as you sat Lucifer back down, he sighs in defeat. "Fine"

M a m m o n
You cook, and he helps, but usually he decides what's going to be cooked, surprisingly it was all pretty good choices. You don't understand why he won't let you cook without him telling you what to cook though.

"Mammon, let's cook (f/f)"

"Nuuh!, I let you choose that like yesterday"

You then tried to convince him with a few tricks but it all failed, except one.

"Mammon, If you won't let m-us have f/f for dinner then I'm sleeping on the couch until next up month" You said knowing he lowkey depended on you when it gets dark. A shiver ran up his spine, two reasons why, he didn't have his nightly support human and he has to face darkness alone. He ended up agreeing. Fortunately due to your kind soul, you never pulled that trick on him ever again.

L e v i ( L e v i a t h a n )
You cook and he helps, you love him but you prefer him not cooking. Even if you were tired you still cooked since you wanted him to eat proper meals and not just instant Ruri-chan limited edition noodles. They don't even taste too good, you also worry that since he has no experience, he'd probably set the kitchen on fire. You repeat what you said you love him and all, but you don't really trust him cooking without you.

"B-but I'm experienced! I can cook!" Levi tries to reason with you as you walked to the kitchen, ready to put away the Ruri-chan limited edition instant ramen back in the cabinet.

"Sweetie, I love you, but you can't call playing cooking mama 10 hours straight experience" You said patting his hair as you started to prepare actual ramen, you were sick this afternoon and he came up to you asking to use the stove to cook the packet of the Ruri-chan- yeah no I'm not repeating it's name.

And you instantly got up to cook real food, like the sickness in your body was non existent. "Buut" "Trust me, You'll like real food instead of some regular instant ramen with a character on the packet cover" You told him in a sweet voice chopping a carrot, lifting one of your hands to pat his head, He pouts sadly in defeat and sat in a chair waiting for the ramen you were making instead.