Made as written. It was good, but felt the beans needed a little salt. Had left overs the next day wrapped in a whole wheat low carb tortilla, instead of a tostada shell; good this way also.
This recipe is fast and delicious and healthy. I used homecooked black beans with a little bacon fat to make the refried beans. I make black bean tostadas a lot. I was looking for a variation, and this quick guacamole was just the thing.