Guacamole Tacos

A few days ago, I posted how Pedro and I made homemade corn tortillas, but I didn't show any of the tacos we ate using them. So, here is a taco of refried black beans and chunky guacamole. Mmmm. Very good! This is simple, fresh food with bright flavors. Perfect for the summer.

Chunky Guacamole

One large, diced, ripe green avocado (not the Has black bumpy avocados, the shiny green larger ones)
1/4 cup minced red onion, blanched briefly in scalding water
1 large ripe tomato, diced (optionally also seeded)
1 chopped, seeded Serrano chile (optional)
juice of 1/2 a lime (or up to a whole lime, as needed)
a handful of cilantro, chopped
salt and pepper to taste