Cut the beef fillet into small strips. Cut the tomatoes into small pieces. Cut the onion into fine cubes. Peel and squeeze the garlic or finely dice it.
Cook the spaghetti in salted water until al dente.
During this time, cook the beef broth according to the instructions and set aside.
Heat the oil. Briefly fry the chilli, onion and garlic. Add the meat and briefly sear on all sides. Salt and pepper a little. Add tomatoes and fry briefly. Deglaze with the beef stock and reduce a little.
Drain the spaghetti, stir with the meat and simmer briefly.
Lay out arugula in a single layer on plates and serve the food on top. Garnish with a few arugula leaves.