For the fillet, lay the slices of bacon next to each other, slightly overlapping. Dab the fillet dry. Season with salt and rub with pepper. Place the fillet on the bacon and wrap tightly around it.
Heat the oil in a pan. Brown the fillet in it all around and put it on a baking tray. Cook in a preheated oven (electric cooker: 200 °C/circulating air: 180 °C/gas: see manufacturer) for approx. 20 minutes.
For the side dish, fry the gnocchi in hot frying fat. Meanwhile peel, wash and slice the carrots. Peel and finely chop the onion. Remove the gnocchi from the pan.
Fry the carrots and onion in the frying fat. Season with salt, pepper and 1 pinch of sugar. Add tomato paste and sweat it. Stir in 500 ml water and stock. Bring to the boil and simmer for about 5 minutes. Heat gnocchi in the sauce. Season to taste with salt and pepper. Serve everything.