While I was recently in Tubac, AZ, I wanted Mexican food for dinner. My sister-in-law and I picked the Soto's PK Outpost Mexican Restaurant because it was just around the corner from the Poston House Inn where we were staying. The restaurant is located in a historic building and is known for their delicious Carne con Chile. We sat on the patio because the weather was nice and cool. While waiting for our margaritas, we were serenaded by their Mariachi band. We enjoyed the entertainment, food, margaritas, and the whole atmosphere of the place.