Take a small mixing bowl, such as a glass bowl or even a breakfast bowl. Pour in the olive oil. Add the salt and paprika. Mix with a spoon.
Add the oat flakes, pumpkin seeds, and walnuts. Mix thoroughly so that all the ingredients are evenly coated with the spices.
Take a baking tray and line it with baking paper. Spread the mixture evenly over the tray. Place in an oven preheated to 180 °C (350 °F) and bake for 10-15 minutes. Stir twice during baking.
When it's ready, let it cool, then put it in sealable jars. When you feel like some granola, just take it out.