A small place with 2 daily changing lunch menues (also soup and dessert), good chance that one or both are glutenfree (they list it online for each week with allergens), sometimes also the dessert. In the evening a la carte, Carribean/Austrian fusion kitchen. Always sandwich options with gluten free bread available. Quite some glutenfree options on the evening menu! The chef is very open if you ask about intolerances.
— Somewhat
— Gluten-free items are marked on the main menu
— Most/All
— Excellent
Their monthly Sunday brunches can also be asked to be glutenfree (or probably other allergens). Just ask when signing up (you have to sign up for an upcoming one beforehand anyway)