Created by BigDTexas on November 29, 2011
Step 1: Pound the chicken breasts to about 1/4-inch thick (does not have to be exactly 1/4-inch).
Step 2: Mix together flour, seasoning salt, pepper, garlic powder and oregano in a shallow dish.
Step 3: Coat the chicken pieces in the flour mixture on all sides.
Step 4: Heat butter and oil in a large skillet and brown the chicken on one side.
Step 5: Turn the chicken over and add in the sliced mushrooms.
Step 6: Pour in the Marsala and sherry; mix to combine.
Step 7: Cover the skillet and simmer chicken and mushrooms for about 15-20 minutes (turning the chicken once).
Step 8: Serve the chicken with Parmesan cheese if desired.