We found McKenna's using FMGF while on vacation. I typically don't like restaurant-sports bars because of the noise, but McKenna's was not noisy. It was very casual and relaxed, appeared to be a favorite among locals, and accommodated large family groups as easily as couples.
The owner took pride in knowing how to prepare GF meals and of having a dedicated GF fryer. He was quite friendly, and our server, Sam, was knowledgeable about the GF diet.
I ordered Conch Chowder, grilled fish (catch-of-the-day), coleslaw, and steamed broccoli with garlic butter. The chowder was so-so, but everything else was very good and apparently quite safe because I had no gluten reaction whatsoever.
I would definitely eat there again.
— Very
— Separate gluten-free menu
— Some
— Excellent