Coat the chicken
Mix the flour, salt, black pepper, and oregano in a shallow bowl. Coat each chicken cutlet lightly in the flour mixture and shake off the excess.
About 5 min
Brown the chicken
Melt the butter with the olive oil in a large skillet over medium heat. Add the chicken and cook until lightly browned on the first side.
About 4 min
Make the sauce
Turn the chicken over and add the sliced mushrooms. Pour in the Marsala wine and cooking sherry.
About 2 min
Simmer
Cover the skillet and simmer for about 10 minutes, turning the chicken once, until the mushrooms are tender and the chicken reaches 165°F in the center.
About 10 min
Finish
Sprinkle the Monterey Jack over the chicken. Cover for 1 to 2 minutes, until the cheese melts, then spoon the mushrooms and pan sauce over the top and serve.
About 2 min

