Preheat your oven to 350°F (175°C) and gather all ingredients and equipment.

Prepare your pie crust in a suitable pie dish. If using a store-bought crust, place it in the dish. For a homemade crust, crush cookies or graham crackers, mix with melted butter, and press into the dish.

In a mixing bowl, blend cream cheese, peanut butter, and powdered sugar with an electric mixer on medium speed until smooth and lump-free, about 2-3 minutes.

Gently fold in the whipped cream using a spatula.

Spread the filling evenly into the prepared pie crust, smoothing the top.

Sprinkle crushed monster cookies over the cheesecake filling and follow with mini M&Ms.

Bake the pie in the preheated oven for approximately 25 minutes until set with a slight jiggle in the center.

Allow the pie to cool for 30 minutes at room temperature, then refrigerate for at least 2 hours before serving.