Preheat the oven to 325F. Line a large rimmed baking sheet with parchment.
In a large bowl, mix the oats, nuts, coconut and seeds. In a small bowl or measuring cup, stir together the brown sugar, honey, oil, cinnamon, turmeric, vanilla and salt. Pour over the oat mixture and stir until well coated.
Spread out onto the baking sheet, making clumps by squeezing some of it together if you like. Bake for 20-30 minutes, stirring two or three times, until golden. Remove from the oven and stir in the dried fruit, if you’re using it.
Cool completely, then package in jars or sealed bags. Makes about 6 cups (1 1/2 L).