Add the sliced mushrooms, season with salt and pepper to taste, sauté for 5-6 minutes.
Add the butter, oregano, and chopped garlic, sautéing for another 3-4 minutes.
Take half of the mushroom mixture and put it into a bowl.
Add the flour to the remaining mushrooms, stir and fry for 1-2 minutes, pour in the water, wine and balsamic vinegar, bring to a boil and cook for 5 minutes.
Pour in the cream, boil for 2-3 minutes, turn the mushrooms over, and add the cooked pasta along with fresh basil, mix everything together, and serve.