Haven't been there yet, but from the photos I've seen since the opening, Hacienda shares a BUILDING and a kitchen with Cantina, but they don't share seating. It looks like Cantina's seating is all outdoors and Hacienda's is indoors. I haven't been there, though, so I can't really tell. I was really under the impression that the opposite was true - than indoor seating would be made available to Cantina guests at lunchtime, since Hacienda didn't serve lunch. but I haven't seen anything confirming that either and just seeing the photos of the restaurant, I don't think they let people inside when they're not serving dinner.
