Depends. He is indestructible and, as far as I know, not a renowned chef. Cooking with ingredients that you actually put in food should be totally safe for him.

He might be able to find some kind of exotic alien substance that could cause some physical pain, but at that point, is he really cooking? Or just adding something painful to food?

Sidenote, he could probably find some kind of kryptonite that would disable his powers for a meal.

Fair enough.

These items are usually marked “not for individual sale“. I’m pretty sure what you are witnessing is people just stealing things. (At least some of the time, But smaller stores do break those “not for individual sell” rules too).

If you’re not sure, just asking an employee.

pines … sinep

(The ellipsis holds forever in its palms).