I read the ingredients of each item, and the only thing that concerned me was the almonds. They didn't have any gluten ingredients, but the package was labeled for possible wheat cross-contamination. Even so, the almonds in question were individually packaged, so if a person didn't want to risk the contamination issue they could pass over the almonds.
It wasn't a hearty meal by any stretch of the imagination, but it tided me over on the two-hour flight during which no regular meal was served.
This gluten-free snack, called the "Shape Up," was $5.99. It was not only gluten-free but also vegetarian. It included green olives, almonds, raisins, GF crackers, hummus, a wet napkin, a mint, and a Pamela's ginger cookie.
The olives went nicely with my Bloody Mary. This is the way to travel!