Preheat oven to 300°F. In a large bowl, combine oats, nuts, pepitas, and coconut. In a small saucepan, combine sugar, honey, oil, and salt over medium heat, stirring until sugar dissolves. Bring to a simmer, then pour over oat mixture; stir until evenly combined. Spread onto a parchment-lined rimmed baking sheet.
Bake, stirring a few times, until golden and crisp, about 45 minutes. Let cool completely, then stir in cherries. Store in an airtight container at room temperature for up to 2 weeks or in the freezer for up to 3 months.