Pour some oil into a hot pan and sear both sides of the pork chops until golden brown. Do it in batches if necessary and when it's done set them aside.
Add the pancetta into a frying pan and sear it on medium heat until all the fat is rendered out. This step can be skipped and cooking oil can be used instead of the fat.
Place the sliced onion and salt onto the hot oil and saute them until a glassy / translucent look.
Mix the pepper and garlic in as well then saute more until the garlic gets fragrant.
Add the tomato, black pepper and paprika and mix it toghether well.
It's time for the meat to get back into the pan. Pour water into the pan until the ingredients are at least half submerged in the water then place the lid on and cook them on low heat until the meat is tender for about 60 minutes.
Mix the in the sliced mushrooms and cook it for about 10 more minutes or until the mushroom gets the desired texture.
Stir in the sour cream then turn the heat off.
Let it settle for a couple of minutes before serving it.