I would never serve people other than family and friends unless I had adequate liability insurance. Same reason I don't let my neighbors swim in my pool, people are too sue-happy these days. You don't even have to have served "bad" food, you just have to have served the most memorable thing they ate that day (and you probably would have an excellent chance at that with some good Q).
Anyway, if you really just want to cook and share food, maybe you could hook up with a local charity like Lion's club or Rotary club and sell some food through them since they would likely have all the necessary paperwork in order.
Brinkmann SnP, Weber Kettle, 30" Masterbuilt Electric, lonely gasser, Red Thermapen