We always had potatoes with peas, sauce and some meat. Originally the meat is a Schnitzel but they don’t have gluten free breadcrumbs so we just had grilled meat. It still tastes really good though. Fish options are also available and made without flour (after requesting).
Edit 2021: We went there again this year and it still tastes so good. My celiac brother had zander and I had egg with mushrooms. The egg is originally with bread but to make it gluten free, I changed it to potatoes. Whenever we go there both, my brother and I, never have any problems afterwards.
— No gluten-free information on the menu