Mix oatmeal, nuts, and seeds in a bowl.
Add cinnamon powder, salt, vanilla extract, honey (or maple syrup), and olive oil, and mix well.
Line a baking tray with parchment paper and spread the mixture evenly.
Bake in a preheated oven at 170°C for 20 minutes, stirring once halfway through.
Let it cool completely, then mix in dried fruits and store.