Preheat oven 350 degrees
Line 13x9 baking dish with foil and spray generously with nonstick spray.
In bowl mix cake, butter, & eggs until combined well and a dough forms. Spoon dough into baking dish. With clean hands press and spread evenly into baking dish. Sprinkle chocolate chips on top. In small bowl mix peanut butter and sweetened condensed, then spoon as evenly as possible over cake. Use spoon to spread somewhat evenly. In bowl, use fork to chop Reeses, and sprinkle over top.
Bake 27-31 minutes until set. Let cool completely to assure it is totally set.
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