In a food processor or blender, combine the onion, jalapeño, cilantro, garlic, lime juice, and kale. Pulse until chopped into pieces the size of your small fingernail.
Add the avocados (peeled and pitted), plus salt and pepper. Pulse until you reach your desired consistency! Add more salt, pepper, and lime juice to taste.
Recipe by The Kitchen Paper at http://c02.ddd.mwp.accessdomain.com/kale-guacamole/