Wash the meat and dab dry. Heat oil in a roasting pan. Brown the meat in it at high heat in portions, take it out. Peel and chop onions and garlic. Put onions, garlic and tomato paste into the pot and fry briefly.
Put the meat back into the pot, season with salt and pepper. Sprinkle flour over it and sweat while stirring. Deglaze with red wine, pour in stock, bring to the boil and loosen the roasting mixture. Cover and braise over low heat for about 2 hours until soft.
In the meantime, pour on some water or broth if necessary. Wash the thyme, dab dry and pluck the leaves from the stalks. Wash, clean and slice the tomatoes. Add the tomatoes and thyme to the goulash about 10 minutes before the end of the cooking time.
Goulash in the open roasting pan, if necessary reduce a little, season with salt, pepper and 1 pinch of sugar. Macaroni or rustic farmhouse bread taste good with it.