Begin by preheating your toaster or a skillet over medium heat. Toast three slices of your chosen bread until golden brown and crispy, about 2–3 minutes per side.

In a large skillet, cook the crispy bacon over medium heat for about 5–7 minutes until golden brown and crispy. Transfer to a paper towel-lined plate to absorb excess grease.

Take one slice of the toasted bread and spread mayonnaise on one side. Layer it with sliced turkey and two strips of crispy bacon.

Top the turkey and bacon with fresh lettuce leaves and slices of ripe tomato. Season lightly with salt and pepper.

Place the second slice of toasted bread on top, spread more mayonnaise, then add remaining turkey and bacon, topping with another layer of lettuce and tomato.

Cap with the final slice of toasted bread. Optionally, add a slice of cheese on top.

Insert toothpicks into the corners to secure the layers, then slice the sandwich diagonally into quarters.