Preheat grill to high heat.
In a medium bowl, whisk together peanut butter, soy sauce, ground ginger, and garlic powder. Add salt and pepper to taste.
In a large bowl, add ground beef, green onions, and the peanut butter mixture. Combine until all ingredients are mixed well.
Form into 8 patties, and grill the burgers for about 2-5 minutes on each side, until nicely browned and desired doneness is reached.
Add your favorite toppings and enjoy!