Hersheypark does a good job of labeling allergens in the dining section on their app which made us hopeful for good food in the park. We ended up getting lunch at the Overlook Food Court which had lots of signs about GF... but the food was pretty meh. The fries were probably baked to keep them safe, but it really just seemed like they'd set frozen fries out on a baking sheet to thaw and served us those. The GF burger bun was ok. I'd complain more, but we weren't really there to eat, we were there for the rides.
My daughter got a smoothie bowl from Oola Bowls and I thought that might have been safe for my son who has Celiac except for the granola that was put on top. The bowls seemed pre-made, so I'm not sure if we could have ordered without the granola to ensure that it was safe for Celiac.
I do love how the Hershey chocolates are labeled GF-- we bought lots of Reeses Peanut Butter Cups on our way out for dessert.
— Somewhat
— Gluten-free items are marked on the main menu
— Not Much/None
— Below Average