Clean, wash and break the beans into pieces. Cook in boiling salted water for about 15 minutes. Then drain them
Peel and chop the onion. Cut the bacon into pieces. In a frying pan crisply leave out, take out
Mix vinegar, mustard, salt, pepper and sugar, fold in 4-5 tablespoons of oil. Mix with beans and onion and leave to stand for a while
Wash and dry steaks if necessary. Heat 1 tablespoon of oil in the bacon fat. Fry the steaks for 2-3 minutes on each side (or brush the steaks with 1 tablespoon of oil and grill them on the hot grill for 4-6 minutes). Season with salt and pepper
Wash, clean and slice the tomatoes. Line a plate with them. Put bean salad on it and sprinkle bacon on top. Serve with the steaks. Garnish with parsley if necessary.