Happy we decided for this option. The burgers are yummy, the staff super helpful and friendly. According to the waiter, all three vegetarian of vegan paddies are gluten-free. I opted for the fake-meat paddy, that tasted like a beyond burger. Hence perfect and definitely gluten-free.
This is a great place to get a gluten free meal in Liege, but they strongly prefer that you contact them in advance to say when you will be coming and want a gluten free burger. That way they will have a bun ready. Their fries were gf as were many of their burgers. The food was delicious, the atmosphere fun, and the service excellent. As a celiac, I felt they took my concerns seriously.