Toast the bread slices until golden brown.
Cook the bacon until crispy and set aside.
Spread mayonnaise on one side of each bread slice.
Layer the turkey on the first slice of bread.
Add a slice of ham on top of the turkey.
Place a leaf of lettuce on the ham.
Add two slices of tomato on the lettuce.
Sprinkle with salt and pepper to taste.
Add the crispy bacon on top of the tomato.
Top with the second slice of bread, mayo side down.
Finish with the third slice of bread, mayo side down.
Cut the sandwich diagonally into quarters and secure with toothpicks.