Xalapa is a restaurant located near Plaza Serrano in Palermo Viejo. Mexico offers flavors of Buenos Aires adapted to taste. The atmosphere is very good and the food tasty and plentiful. You can share and sample several dishes. The prices are not excessive. The only potential downside is that you will probably have to wait on a Friday or Saturday. Another drawback is that there are many people so sometimes service is a bit on the slow side.
Located in the Belgrano neighborhood, this is a newcomer to the Buenos Aires Mexican food scene. It was originally delivery-only, but nowadays they've added a small dining room. When I say small, I mean it! The tables are very close together, and it can be a bit noisy, but the atmosphere is generally pretty relaxed, and I like the decor. The service is very good, and the food is fine, although not amazing. For me, it was a little bland for Mexican food, so I guess it's good if you want to try Mexican food, but you're not really into spice.