No items are marked on the menu, but after talking to the waiter all items from the grill could be prepared safe for a coeliac (I used the term 'gluten allergy' which, while incorrect, I have found usually gets the attention of the staff in Dutch restaurants). The grilled dishes were served with fries that were cooked in a dedicated fryer. 48 hours later and no reaction 🙌
— Somewhat
— No gluten-free information on the menu
— Some
— Excellent