Peel and wash the potatoes, cut them into slices and put them into a bowl. Sprinkle with 1 tablespoon of oil and sprinkle with seasoning mixture. Mix and place on a baking tray. Bake in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 25 minutes.
Turn after half the baking time. Peel and chop onion and garlic. Heat 1 teaspoon of oil in a frying pan and sauté the garlic and onion. Drain beans, rinse and drain.
Add beans and tomatoes to the onions, bring to the boil and simmer for about 10 minutes. Season to taste with salt, pepper, chilli and marjoram. Heat 2 tablespoons of oil in another pan and fry the escalopes in it on each side for about 3 minutes.
Season with salt and pepper. Arrange everything on plates and serve garnished with marjoram.