Arrange a single layer of chocolate wafer cookies on bottom of lasagna pan.
In large bowl, beat cream cheese with electric mixer on medium speed until light and fluffy. Add melted candy and beat until combined, scraping bottom and sides of bowl as necessary. Spread mixture in an even layer over cookies.
Top peanut butter mixture with a single layer of cookies. In large bowl, whisk chocolate pudding mix and milk until smooth. Fold in 1 package whipped topping until combined. Spread over cookies.
Top chocolate pudding mixture with cookies, breaking in half as necessary to fit in a single layer. Spread remaining package whipped topping over cookies. Sprinkle with peanuts and mini chocolate chips. Chill at least 6 hours or until ready to serve.