The collective experience of this board would be perfect for this question.
I'm a night owel. So when I go camping, it's late at night when I want to eat. That's not a problem logistically. I'm usually at a camp ground at a paid-for-spot with other spots around me.
My main concern is wild life. There are nocturnal creatures out there, and I've encountered some of them. For obvious reasons I'd rather not do that again. Wild life in this context can range from raccoons and coyotes to bears, depending on the hour.
So what I want to know is: how late can I prepare a meal without attracting attention (either at the moment or for a while thereafter) safely. Can I cook a can of Spam at 1:00 AM? What about roasting foil wrapped chicken at 11:00 at night?
I have a car parked in my camping spot, so I can always put the food and waste in there after I'm done.
If it's not safe to openly prepare food late at night in the wild, then are there any alternatives? Maybe a candy bar, where the empty wrapper gets thrown into the car.