In a large mixing bowl, whisk together flour, sugar, baking powder, and salt. In another bowl, combine egg, milk, and melted butter. Fold wet into dry ingredients until just combined.

Heat a non-stick skillet over medium heat and pour batter for each pancake. Cook until bubbles form, then flip and cook until golden brown.

In a cast-iron skillet, divide ground beef into balls and smash each flat. Season with salt and pepper. Cook until edges crisp, then flip and add cheese.

To assemble, start with a pancake, layer with a burger patty, bacon if desired, and top with another pancake. Drizzle maple syrup before serving.