Pre-heat the oven to 300 degrees.
Pour the nuts, seeds, and dried fruit right onto a baking sheet (NO Silpat or parchment paper for this recipe), and then toss with the melted butter and sea salt so that everything is coated evenly.
Divide the trail mix between 2 large baking sheets, spread the trail mix out, and bake at 300 degrees for 10 minutes. Stir the trail mix around (I just shake the pans a bit!), and then bake another 5-7 minutes.
Let the trail mix cool completely and then store in an airtight container.