1With a serrated knife, cut the top off the extra bun half, leaving about a ¾ inch thick slice. This will be the middle bun or your sandwich. Place the three bun halves on a hot pan or griddle, and face down, and toast them to a light brown. Set aside, but keep the pan hot divide the ground beef in half and press into two thin patties slightly larger than the bun. Cook the patties in the hot pan over medium heat for 1 to 2 minutes on each side. Salt and pepper lightly.
2Build the burger in the following stacking order from bottom up
Half of dressing
Half of onion
Half of lettuce