Ate there on 5-25-2018. There are less GF eats at PNC now than ever before. I am attaching a pic of what I was shown at the information desk. It looks like a very poor selection. HOWEVER, Manny's BBQ (near section 141, center field) is certainly a safe GF free place to eat. I had an Angus burger wrapped in lettuce ($8.50). The server changed gloves and washed hands immediately. Used clean tongs to handle my burger. Delicious. A few innings later, I went back and had a second since the fries weren't GF. The cashier had looked into the nacho chips and also the cheese. She showed me that they both were marked as GF on the original packaging. Also, she told me that the BBQ sauce and pulled pork are GF. This is great news.
SORRY- Peroghi are not GF. :-(
Rita's ice (next door to Manny's) is also GF. $8 for a large cup of shaved ice.
Manny was a great person. His business is a cool place for Celiac sufferers to eat, just tell them about your requirements.