Cut the bread into half. If using thin sandwich bread, you don't need to cut it. Toast the bread.
After toasting, spread mayonnaise and sprinkle mustard powder on one side of each of the two slices.
Once you make the egg omelet, fry the bacon.
Arrange the bacon on the bread.
Top with cheese.
Top with the egg omelet.
Top with tomato.
Pile lettuce high on top.
Top with the second slice, cut in half, and enjoy.