Preheat oven to 400 degrees F. Prepare a 9x13 inch baking pan and spray with non-stick cooking spray.
In a large bowl, combine all ingredients and stir by hand until well combined, but do NOT overmix. Batter may be slightly lumpy.
Pour batter into pan and bake for approxiately 25 minutes, or until a toothpick inserteted into the center comes out clean.
Remove from oven and allow to cool slightly. Store any uneaten portions tightly covered.
