Preheat oven to 350 F. Line a 9x13 pan with parchment. In a large bowl, stir all ingredients until well-mixed. Smooth into the pan. Sprinkle additional chocolate chips on top if desired. Bake on the center rack 28 minutes, then do not open the oven door but turn off the heat and let sit in the closed oven an additional 20 minutes. Slice into bars or squares. Leftovers can be refrigerated 3-4 days, or freeze the bars to have on hand any time you need an instant healthy breakfast you can take on the go!View Nutrition Facts