If I can be allowed one blatant self-serving mercinary post per lifetime:

I happen to sell these aluminum survival kit boxes on amazon which seem very similar in size to the one you're looking at, albeit they do cost more than a dollar.

The label does say "not reccomended to cooking" but they are hard-anodized. I suspect that the disclaimer stems from the fact that they lack a proper handle rather than some food-contact safety issue but you'll have to use your own judgement in an emergency.