Combine Melted Butter and Graham Cracker Crumbs until Crumbly.
Press Cracker Crumbs into the bottom of a 9x13 Baking Dish that has been lined with Parchment Paper.
Pour Sweetened Condensed Milk over the Graham Cracker Crumbs.
Sprinkle with Oats, Coconut, Chocolate Chips, Peanut Butter Chips, and M&Ms.
Bake at 350 Degrees for around 25-30 minutes.
Let the cookie bars cool completely.