We were lucky enough to get a table for two outside, right along the Riverwalk. On recommendation from the hotel, we ordered the tableside guacamole.
I decided that this stuff could sustain life all by itself.
I watched our server prepare the guacamole and could see how easy it is. I took notes, then went home and found the recipe online. The recipe is available here.
For the tomatoes, I just use canned roasted tomatoes, like Hunts Fire Roasted Diced Tomatoes. I may use a tablespoon of orange juice instead of the "juice of 1/4 of an orange," and a tablespoon of bottled lime juice for the "juice of 1/2 a lime." I use 1/2 tsp. salt. I understand the Serrano pepper is optional.
I think the lime really does it for me. I usually double the recipe and use two avocados. I have had more success when I stick to the Haas avocados....they have a nicer texture. Delicious!