Chilean Lomo a lo Pobre

Name: Chilean Lomo a lo Pobre
Cuisine: American, Mexican, Latin American
Ingredients: 4 thick beef sirloin steaks (200-250g each); Salt and black pepper, to taste; 2 tbsp olive oil; 4 large potatoes, peeled; Vegetable oil for frying; Salt, to taste; 4 eggs; 1 tbsp butter; Salt and pepper, to taste; For the Sautéed Onions; 2 large onions, thinly sliced; 1 tsp sugar; ½ tsp salt