Using a food processor, place avocado, olive oil, onion, and garlic inside and pulse to 'puree'.
Open and add in lemon juice.
You can pulse to leave chunks or you can go smooth, really your choice.
Fold tomato mixture in by hand and a quick dash of salt and pepper.
Place in a serving bowl (or refrigerate if not using immediately)
Top with a sprig or two of fresh cilantro
Add Chips to a Bowl and serve with Guacamole Salsa.