1. Preheat oven to 350 degrees Fahrenheit.
2. Place first five ingredients into a large bowl, mixing until well combined.
3. Spread into greased 9 x 13-inch pan. (It will spread most easily with the back of a wet spoon.)
4. Bake for 15 minutes. Remove from oven.
5. Melt together chocolate chips and peanut butter in a small pot, stirring until smooth.
6. Spread evenly over bars and cut into small squares.