Preheat the oven to 375°F (190°C).
Remove excess water from the thawed edamame using a salad spinner or pat dry with paper towels. Toss edamame with olive oil, salt, and black pepper in a bowl until well-coated. Spread the edamame in a single layer on a non-stick rimmed baking sheet.
Roast for 10 to 13 minutes, stirring halfway through, until edamame turns golden-brown.