I spoke to Bobbie (the kitchen manager) at Abbey Burger in HdG. They were pretty busy, but she took time to talk to me and answer my questions. She said the meat was the only thing put on the grill, buns were toasted in a separate oven, so there is nothing gluten on the grill. They do have a gluten free bun. She said the crab dip was made from cheese, cream cheese, old bay, salt and pepper, and cream sherry so should be gluten free as well. She made sure the person taking the order knew it was a gluten free order.
Unfortunately, there is not a dedicated fryer, but they do have chips.
— Somewhat
— No gluten-free information on the menu
— Some
— Excellent