Put the olive oil, chopped onion, and garlic in the bottom of the slow cooker.

Add the chicken breast pieces, salt, pepper, and rice.

Pour ⅔ of the container of broth on top. Stir.

Put lid on the slow cooker and turn it on high. Cook for four hours on high.

After two hours, check to make sure there is still enough liquid inside. If not, add some more warmed up broth.

A half an hour before it is done, add the chopped broccoli and stir. Add more warm broth if needed.

Cook for another half an hour until broccoli is bright green and tender.