Wash the potatoes thoroughly and cook in boiling water for about 20 minutes
For the dressing, mix yoghurt, honey and mustard. Gradually fold in 2 tablespoons of oil. Season to taste with salt and pepper. Clean and wash the radishes and slice them into thin slices. Peel and halve onions and cut them into thin strips. Wash the salad and drain well in a sieve
Drain the potatoes, let them evaporate for 5-10 minutes and cut them in half. Heat 2 tablespoons of oil in a large frying pan. Fry the potatoes for 8-10 minutes until golden brown. Remove and let cool for about 30 minutes
Mix potatoes, radishes, onions, salad and dressing. Arrange salad on two plates. Spread slices of roast beef on top
Preparation time 45-50 minutes. Waiting time approx. 30 minutes