How to Make It
Preheat oven to 300°F with rack in the center. Combine oats, pecans, pepitas, coconut, maple syrup, vegetable oil, brown sugar, wheat germ, salt, and egg (if using) in a large bowl and toss until evenly coated.
Transfer to a rimmed baking sheet and bake, tossing gently with a metal spatula and rotating sheet halfway through, until golden brown, 25–30 minutes.
Let cool completely on sheet (granola will crisp as it cools) then transfer to an airtight container. Granola will keep, tightly covered at room temperature, for about a month (if it lasts that long).