In a large bowl, mix all ingredients together until well combined.
Form 6 patties (about 3-4 oz each) and place in the fridge until ready for the grill.
When the grill is ready, place the burgers directly on the grill grates and carefully flip when the sides of the burger are cooked, but the middle still looks slightly raw.
Cook the burgers until they reach about 165 degrees F internally.