Preheat oven to 350 degrees. Stir together all ingredients in a bowl. Spread mixture in a single layer on a baking sheet lined with parchment. Bake until pepitas are golden and slightly puffed, about 10 minutes. Season with salt. Stir gently, leaving some clumps. Transfer to a bowl; let cool completely.
Pepitas can be stored in an airtight container up to 3 days.