On a Medium Flame, place the heavy bottom pan on the stove.
Add olive oil and let it heat up.
Add finely chopped onions, garlic.
Once the onions soften, add red chili flakes, and Italian Seasoning along with sliced mushrooms and 1/2 tsp salt.
Saute the mushrooms until they are cooked. It should take like 3-5 minutes.
Add your marinara and pesto sauce to the pan. Mix everything well.
Let it cook for 2-3 minutes, then add mascarpone cheese or cream cheese. Mix it in the sauce and incorporate it well.
Once the pasta is boiled, save 1 cup of water. Then, strain the pasta using a clonader. Wash the pasta with cold water.
Add 1 Cup of Reserved Pasta Water to the sauce. Let it simmer for 2-3 minutes.
Add your cooked pasta to the sauce. Mix it well.
Turn off the stove after a minute.