01 - Preheat oven to 350°F.
02 - In a mixing bowl, toss almonds with olive oil, sea salt, rosemary, garlic powder, black pepper, and lemon zest if using until evenly coated.
03 - Spread the almonds in a single layer on a baking sheet lined with parchment paper.
04 - Toast in the oven for 10-12 minutes, stirring once halfway through, until golden and fragrant.
05 - Remove from oven and let cool completely before serving. Store in an airtight container.