Even if you think you don't like anchovies,please try them,it makes all the difference!
Place the lettuce in a large salad bowl.
In a medium bowl,mix lemon juice,garlic and mustard. Using a whisk or fork,gradually beat in oil. Mix in anchovies.
Grind the pepper over the greens. Add dressing to greens and mix gently. Break the egg in and mix well. Sprinkle with cheese and croutons and mix again. Serve at once.