Preheat your oven to 180°C (350°F) and line a baking sheet with parchment paper for easy cleanup.
Measure out about 2 cups of mixed nuts—almonds, cashews, and walnuts—and place them in a large bowl.
Drizzle the nuts with a tablespoon of olive oil and sprinkle a pinch of sea salt over them, then toss everything together until the nuts are evenly coated and glistening.
Spread the nuts out in a single, even layer on the prepared parchment-lined baking sheet, making sure they aren't crowded so they roast evenly.
Place the baking sheet in the oven and roast for about 10 to 15 minutes, stirring or shaking the pan halfway through to promote even browning and prevent burning.
Keep an eye on the nuts as they turn a beautiful golden brown and release a warm, toasted aroma that fills your kitchen.
Once the nuts are evenly toasted and fragrant, remove the baking sheet from the oven and let them cool on the sheet or transfer to a cooling rack to crisp up further.
Once cooled, transfer the nuts to an airtight container or jar. They’re perfect for snacking immediately or using as a crunchy topping for salads and cheese boards.
