Rather than a apartment community cook-out where you simply provide the food, make the resident event be a competition for the best steak in the community! Each entrant must bring their own steak, any cut they like, and give them free reign over the grills. Pick an unbiased panel of resident judges who will get a small piece of each steak to judge from the contestants.
"Do your grilling skills have what it takes? Who can claim the title of having the Best Steak at XYZ Community?"
What is also nice about this event is that it is ideal as a recurring yearly event! Establishing consistency year after year is vital for a sense of community, so having the “reigning champion” come back to defend his/her crown is a great way to showcase residents and build up excitement about the event!