Whisk the oil, brown sugar, egg, bananas, and vanilla in a large bowl and set aside.
In the bread machine bread pan, add in the baking powder, salt, and flour.
Pour the mixture into the pan on top of the flour mixture.
Push the quick bread setting button and shut the lid.
Once you hear the beep of the machine to add in ingredients, lift the lid and add in the chocolate chips. Use a spatula and scrape the sides to push down any batter.
Let the bread bake and then take the pan out of the machine to cool before removing the bread from the pan.