Preheat the oven to 350°F Lightly oil or coat a 9 x 9-inch baking pan with nonstick cooking spray and set aside.
Place the garbanzo beans in the bowl of a food processor and process until smooth and creamy. Add the eggs, sugar, oil, vanilla extract, baking powder, salt, and cinnamon and process until smooth. Add the oats and chips and pulse just until blended.
Pour the batter into the prepared pan, and smooth the top with a rubber spatula.
Bake 35 to 40 minutes, or until a toothpick inserted in center comes out clean. Let stand at least 20 minutes before slicing. Store in refrigerator.