Preheat the oven to 350 degrees F. Line a 9 inch square baking pan with parchment paper.
In the bowl of a large food processor, place the graham crackers, chocolate and butter. Process until the mixture is the consistency of wet sand. Press firmly into the bottom of the prepared pan.
Coarsely chop the pecans, pepitas and coconut and place in a large bowl. Add the chips and the condensed milk, stirring all ingredients to coat evenly. Spread the mixture in an even layer over the crust.
Bake for 40 to 45 minutes. Finished bars will be deep golden brown and crisp at the edges. Remove from oven and set aside to cool for at least 30 minutes before cutting and serving.
Notes
If you are unable to find pepitas, just increase pecans to 1½ cups.
And yes, you can always leave out the Ancho Chile Powder if you don't want that.