This article was based on an article in the Greek version of Wikibooks.
Loaf of bread
Butter
2 leaves of lettuce
1 egg
1 churasco (beef skirt steak), sliced thin
1 pepper
Ketchup (optional)
Mayonnaise (optional)
Mustard (optional)
Cut the loaf of bread lengthwise and put in a warm place.
Cook the beef in a hot frying pan with a little oil.
Season beef with salt and pepper.
Fry the egg alongside the beef or in another frying pan. The yolk should be well cooked (not runny).
Spread a little mayo on both sides of cut bread. Top with the beef, the fried egg, a couple of lettuce leaves, and the tomato slices.
Top with ketchup or mustard to taste.
Cover with the other half of the bread loaf. Serve hot.