Prepare pizza pan by spraying with non-stick spray and lining bottom with parchment paper.

In a large bowl mix up the brownie batter following instructions on the box of brownie mix.

Pour the batter into the pizza pan and use a spoon to spread it out until it is level.

Bake according to box instructions for a 13x9 inch brownie pan.

Once it is finished baking remove it from the oven and let it cool completely.

When cooled and ready for the "sauce" place 1 cup of Nutella in a microwave-safe bowl and microwave for 15 -30 seconds until it is slightly runny. Spread over the brownie layer leaving a 1-inch edge around the outside of the brownie.

Sprinkle on the Halloween candy.

Cut and serve. If not serving immediately you can refrigerate this until ready to serve.