Sims have no cook option.

Try resetting your user files as described in the factory reset described in this post: http://answers.ea.com/t5/The-Sims-4/FAQ-Troubleshooting-Steps-amp-Known-Issues/m-p/3621199

You won't loose anything. Just make sure to not delete any files  and make a backup.

Try on a new game with nothing added back first (start new game). If it works, put back your save game and try again. If it still works, you can start putting stuff back.

• Options.ini (or just re-set all your settings manually)
• Tray Folder
• Screenshots/Videos/Custom music
• Rest of the save games (leave out slot_00000001.save which is the autosave)
• Custom content like clothing, hair, skins, make up ....
• Mods (one by one, making sure they all still work)

The rest does not need putting back, cause they are mostly cache files that recreate or log files that are not needed for the game. 

Just did that , didnt work.

Did you try on a fresh save and also had the issue or only on your existing one ?

had something similar to this with Dine Out stuff pack, after deleting the stove and fridge I had to move my house to galley and place it back. oddly it worked fine after and not had a problem since then 

Tagging @Whatthewoohoo

I've moved this to general for now.

Try selling and re-buying the stove.

I had this problem too, I realized it was because I made my sim from a different sim from my other world. She still had alot of skills but I wanted to reset her skills, so I did the cheat to make her skill 0, for some reason because I made homestyle cooking level 0, she was unable to cook the same way that this happened. For me, using the cheat: stats.set_skill_level Major_HomestyleCooking 1 made it so I could cook again. I dont know if this is your cause of the problem, but it was mine and this fixed it. :D

(so sorry first time posting)

made an account just to give thanks; this worked for me, and i had already tried a few things. thank you.