It's Really-Not-That-Complicated Guacamole
serrano or jalapeño pepper
or to taste
medium red onion
A small handful of cilantro
Finely chop the tomato, chilies, garlic, and onion, and put them in a bowl. Squeeze in the lime, add some salt and pepper, and mash everything a bit with a fork.
Open the avocados and scoop out the flesh into the bowl. Mince the cilantro and toss it in. Mash it all together, making sure to leave some un-mashed pieces of avocado.
There is no step 3, unless you want to sell it to some fools for $14.