Fast Healthy Snacks

Does anyone know of any quick snacks that are healthy as I can get on the road that are gluten free, I am celiac.

Fruit. Yogurt (check the label). Salami Snack (check the label). cheese slices in packets (not processed cheese slices) - I like a slice of Swiss cheese, rolled and eaten like that! uncoated nuts. Trail mix. Many varieties of Walkers crisps are gluten free, but I do not know if you do not rank them in good health.