This should be an easy one, since it is Memorial Day weekend, typically one of the great cooking out weekends of the year.
Your challenge is to cook something outside. Not in your kitchen. On a grill, either gas or charcoal, or over coals made with real wood. It can be as easy as roasting a few hot dogs, or as fancy as making grilled pizza or grilling some sort of dessert. That is up to you.
The possibilities are endless. At this little place here we will be eating lots of stuff cooked with fire in the next few days. Hot dogs, hamburgers, some grilled potatoes, possibly some other veggies on the grill (onions, mushrooms, etc), maybe some venison shish kebabs; my menu for the next three days is still coming together.
Be creative. If you don't have a grill of your own, do you live where you could make a small campfire and cook on that? What about going to a park that has those cast iron grills up on stands? We've used those many times through the years while traveling with the kids; we've grilled in parks in Florida, South Dakota, Illinois, Montana, Kentucky . . . Don't automatically say you can't cook with fire just because you live in an apartment, or don't own a grill.