Brown burger in pan. Add diced onion and allow to cook until onion is just turning translucent.

Add the burger and onion mix to a large slow cooker such as a Crockpot and turn on "low".

Add all remaining ingredients to the slow cooker and mix thoroughly.

Slow cook on low for 4 to 6 hours, stirring occasionally.

Serve with corn chips, shredded cheese, and a dollop of sour cream.