Cook the bacon

• Heat the frying pan and cook the bacon until crisp.
• Set the bacon aside on a plate.

Fry the egg

• Add the butter to the pan.
• Fry the egg to your liking.

Toast the bread in the pan

• Toast the bread slices in the same pan until golden on both sides.

Assemble the sandwich

• Place the cheese, bacon, egg, tomato and salad leaves between the toasted bread slices.
• Close the sandwich and serve.