Preheat oven to 350°
Prepare the baking dish by lightly spraying with nonstick spray and lining with parchment or aluminum paper.
In a covered microwave-safe dish, melt butter for 45 seconds.
Combine the graham cracker crumbs and melted butter, then spread evenly and press mixture into the bottom of the pan to create the base layer.
For the rest of the ingredients, spread the semi-sweet chocolate chips evenly on top of the graham cracker layer. Top evenly with the coconut, and add optional chopped pecans.
Drizzle the entire can of Eagle-sweetened condensed milk over the baking dish, making sure that everything is evenly distributed.
Bake at 350 degrees for 25-30 minutes or until the top is golden brown with toasty coconut.
Allow to cool completely before cutting into 18-24 servings.