Wash the potatoes and cook in boiling water for about 20 minutes. Peel the onions. Dice onions and bacon. Dice bacon in a large pan without fat. Add half of the onions and fry.
Remove the bacon mixture. Drain potatoes, rinse, peel and slice. Fry potatoes in hot bacon fat in 2 portions while turning for about 10 minutes. Put all potatoes into the pan and season with salt and pepper.
Fold in the bacon-onion mixture. Tie steaks with thread. Heat 1 tablespoon of oil in a pan. Fry the steaks in it for about 3 minutes on each side. Wrap the steaks in aluminium foil and let them rest. Clean, wash and pluck the romaine lettuce into pieces.
Drain and rinse the kidney beans and corn. Mix both. Mix vinegar, salt and pepper. Add 3 tablespoons of oil. Stir in remaining onion cubes. Mix vinaigrette and salad. Wash the parsley, pluck the leaves from the stalks and chop finely.
Arrange steaks and fried potatoes. Sprinkle fried potatoes with parsley, steaks with coloured pepper. Add salad.