The Chivito: Uruguay's Most Iconic Sandwich

Name: The Chivito: Uruguay's Most Iconic Sandwich
Prep time: 20 min
Cook time: 10 min
Total time: 30 min
Cuisine: Latin American
Ingredients: 8 slices bacon; 2 beef fillet steaks (or 4 thin slices grilled steak); Salt (coarse, to taste); Black pepper (to taste); 1 to 2 tablespoons butter; 4 eggs; 4 sandwich buns (large, such as large ciabatta rolls); 4 tablespoons ketchup; 4 tablespoons mayonnaise; 1 head of lettuce; 4 slices ham (deli cut); 4 slices tomato; 4 slices mozzarella cheese