Preheat oven to 350 degrees F. Grease an 8x8 baking dish and set aside.
In a high-powered blender or food processor, process/grind the old fashioned oats into a flour. Add the salt, baking powder, Great Northern beans, maple syrup, vanilla extract, peanut butter, and shredded carrots. Blend/process at high speed for 1-2 minutes, or until you get a thick, smooth batter. You may need to stop the blender or food processor from time to time and use a rubber spatula to promote blending.
Transfer the batter to the baking dish and spread it out evenly with a rubber spatula. Top with more shredded carrots and the chocolate chips.
Bake for 21 to 24 minutes or until the edges of the bars get slightly brown. Remove from oven and let them sit for a few minutes before slicing them into 9 squares.
Store the squares in an airtight refrigerator in the fridge for up to 5-7 days.
You can sub garbanzo or cannellini beans, as well as a different nut butter if desired.