Cook the pasta in 2-3 l boiling salted water (approx. 1 teaspoon salt per litre) according to the instructions on the packet. In the meantime dab the meat dry and cut into strips. Wash and quarter the tomatoes. Peel onions and garlic and chop finely.
Heat the oil in a coated pan. Sauté the meat on all sides over a high heat for about 2 minutes. Season with salt and pepper and remove.
Stew the onions, garlic and tomatoes in hot frying fat for about 5 minutes. Season with salt, pepper and marjoram. Clean, wash and drain the arugula.
Drain the pasta and collect about 100 ml of pasta water. Put the noodles back into the pot. Fold in the meat strips, tomato mix, pasta water and rocket well. Serve everything. Sprinkle with coarse pepper and slice Parmesan cheese over it.