Nona
This organic Neapolitan-style pizzeria has a couple of branches now (Sainte-Catherine, Flagey, Rue de Bailli), but this branch next to the Merode subway has one advantage over the others: its location. In summer, it's not unusual to see locals queuing for a takeaway to sit and eat their wood-fired pizzas on the grass of Parc du Cinquantenaire, which lies just across the road. But it's no hardship to sit inside, either, and the quality is always good.