3 tablespoons vegetable oil 1 large garlic clove, minced 1 ounce ginger, finely grated Juice and grated zest of 2 lemons Kosher salt and freshly ground black pepper 10 ounces dried somen 24 small
headless tiger shrimp, peeled, halved lengthwise, and deveined 1 cup fresh shelled or frozen green peas, or 1 1/2 cups edamame (thawed if frozen) 1 scallion, trimmed and thinly sliced on the diagonal