Heat oil in a large skillet over medium heat. Add onions and garlic, season with salt and pepper, to taste and saute for 2 minutes. Add edamame and saute for 4 minutes until edamame are heated through and onions are tender. (Reserve leftover Sauteed Edamame for online Round 2 Recipe "Bowtie Pasta with Edamame.)
Use the leftovers from this recipe to make (Web Exclusive) Round 2 Recipe: Edamame with Pasta.