If you are looking for a detoxing and healthy lunch spot, then you should probably go to ICI, a “néo-cantine” located near the Place Brugmann.
Even though the place is 99 % of its time packed with women, gentlemen, you are more than welcomed!
In fact, you can find all sorts of dishes at ICI; you can either go for a warm dish such as fish with baked vegetables or choose going raw with salmon sashimi. They also serve incredible veggie plates and soups, that you can accompany with a freshly pressed juice.
I have heard their brunches are pretty amazing, so I can’t wait trying them out too.
Finally, the light bulbs on the ceiling and the chalkboard both contribute to the friendly and welcoming atmosphere of the place.