How to cook burgers in a cast iron skillet?

To cook burgers in a cast iron skillet, preheat the skillet over medium-high heat. Season the burgers with salt and pepper, then place them in the skillet. Cook for about 3-4 minutes on each side, or until they reach your desired level of doneness. Make sure to flip the burgers only once to ensure a nice crust forms. Serve the burgers on buns with your favorite toppings.