Begin by cooking the bacon.

Next, spread mayo thinly on the slices of bread. On one slice, apply mayo to both sides.

Toast the slices of bread with the mayo side down until brown.

Place the bread on the cutting board toasted side up. Apply mustard to the toasted side of the bread. Add cheese next, then bacon and turkey.

Next place the slice of bread that is toasted on both sides. Optionally, add mustard or mayo. Continue to build the sandwich.

Add the last piece of bread to the sandwich, toasted side down. In a pan, add a half of a tablespoon of butter.

Toast both sides of the sandwich like you would a grilled cheese sandwich.