If using frozen peas, place them in a colander or strainer and run cool water over them until thawed.
Heat a medium skillet over medium heat and add the butter. When the butter is melted, whisk in the ground ginger and add the fresh dill, reserving a few sprigs for garnish, if desired. Add the peas to the skillet and toss to coat in the butter mixture. Sauté for about 10 minutes, stirring frequently. Season to taste with salt and pepper.