What to do:
.Preheat oven to 350° F.
.Coat baking pan with cooking spray.
.Place all of the ingredients into a large bowl and mix until just combined.
.Pour into prepared pan and bake for 20 minutes or until a toothpick inserted into the center comes out clean.
.Allow to cool for 5 minutes and cut into squares.
Variation: You can use raisins instead of blueberries to make cinnamon-raisin oatmeal squares.