Preheat a grill pan or cast-iron frying pan. Season the meat and roughly shape into 4 patties. Brush the patties with a little oil and sear for 1–2 minutes on each side until well browned, but still very juicy. Sit the cheese on the hot burger.
Toast the buns in the grill pan.
To build, place the base of the bun on a serving plate, top with the patty and melted cheese, then the