We went to the Recoleta Bis Aramburu- and the lunch special is very good, and reasonable.
We had one principal only, which comes with a glass of wine, and one full lunch, which is entrada, principal, and postre, with wine.
Total for the two was just over 800 pesos, and we had food we took home. So, around 400 pesos each.
good sized portions, interesting dishes. Not old fashioned- the salad was arugula, the pasta had a curry mussel and calamari sauce, the bondiola came with a sweet potato puree.
I will be going back.