Start by slicing avocados in half and taking pit out, scrap fruit into bowl. Add lime juice from one lime and 1 cup of previously made pico de Gallo, using a fork smash ingredients together until they are the consistency you prefer.
Notes
Eat immediately with chips or along side your favorite Mexican dish. If you are not going to eat guacamole right away, cover tightly with plastic wrap, pressing wrap down onto guacamole so that no air gets to it, and store in refrigerator. This will help to keep it from browning. Guacamole is best eaten as close to the time as you've made it as possible, but making it a couple hours in advance will work.