W&M Lawson
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They have very good craft brew - which you don't find often in small pueblos of Mexico. The day we were here they only had three available. One was an IPA, then a pale ale, and the one I loved was their Bandito Stout.
They have a beautiful location on the plaza under the canopy of some beautiful shade trees. Plenty of outdoor seating and a few tables indoors as well.
Wait staff was very friendly and explained the beers and menu items to us. Also if you are adventurous, try the Oxaca appetizer which consists of fried grasshoppers, served with home made blue corn tortillas, guacamole and some very nice salsa.
We also had their battered fish tacos, (you can also order the fish grilled if you don't want battered) and the batter was very light with a wonderful flavor.
Tuesdays are half price beer specials and Fridays they have specials on the fish tacos
This is a great place to enjoy some cold beer, relax and people watch - I only wish they would serve chips and salsa if you are ordering drinks (if you want chips and salsa it is an extra charge)