A cast iron skillet such as this one by Le Creuset (the most durable and worth the cost) will give your ground beef burgers a perfect finish.
Below: hot pickled peppers are placed on cooked hamburger patty, which will be topped with Irish Ballyshannon Cheddar cheese and broiled. 
The Le Creuset skillet can take the highest oven-temperatures, and withstands broiling.
