Add the diced onion and grated carrot to a saucepan.
Add finely chopped mushrooms (I used champignons).
Add the diced chicken breast.
Add the tomato sauce.
Pour in a little olive oil and fry the ingredients over low heat for 7-10 minutes. Sprinkle with salt, ground pepper, and other seasonings as desired, such as paprika, thyme, or Italian herbs.
Add the diced potatoes.
Pour the water into the pot and boil the soup for 25 minutes.
Finally, add the melted cheese or cream cheese.
Stir until the cheese dissolves, then turn off the heat.
The mushroom soup with chicken and cheese is ready. Enjoy!