In a medium skillet over medium-low heat, add diced nuts and oats. Toast for 4 minutes, stirring frequently, until the oats are golden and the nuts are fragrant, but not burnt. Add oil, honey, vanilla, and salt, mix well to coat the oats. Cook 1 additional minute while string.
Remove from the heat and spread on a parchment-lined baking sheet. Allow to cool completely before adding to an airtight container.