Preheat oven to 400 degrees. Cover a large baking sheet with parchment paper. Set aside.
In a small bowl, add the parmesan cheese, garlic powder, salt, and pepper. Stir to combine and set aside.
Pat edamame dry and pour in a medium bowl. Add the olive oil and stir to combine.
Add the cheese mixture to the edamame and stir until the edamame is coated with cheese.
Spread the coated edamame in an even layer on the prepared baking sheet.
Bake for 15 minutes or until crispy and golden.
Allow to cool for 5 minutes.