Drain the tomatoes. Collect the oil. Wash and clean the mushrooms thoroughly. Wash meat, dab dry, cut into strips and season with salt and pepper. Heat 1-2 tablespoons of tomato oil in a coated pan.
Fry the meat for 3 minutes until golden brown. In the meantime peel onions and cut strips. Cut tomatoes into strips. Remove the meat. Put the mushrooms in the pan and fry them for 2 minutes until golden brown.
Add the onions and fry for about 3 minutes, season with salt and pepper. Prepare noodles in boiling salted water according to package instructions. Wash the thyme, dab dry and pluck the leaves from the stalks.
Deglaze mushrooms with cream, Noilly Prat and milk, bring to the boil and simmer gently for 5-8 minutes. Stir the starch with a little water until smooth and thicken the sauce. Add the meat, tomatoes and thyme, except for a little to sprinkle, to the mushrooms and cook for 3 minutes.
Season to taste with salt, pepper and sugar. Arrange noodles and ragout on plates, sprinkle with remaining thyme.