2. Lay the chicken cutlets between two pieces of waxed paper. Pound each cutlet with the flat end of a mallet until thin.
3. Heat the olive oil in a large, nonstick skillet. While the oil is heating, season the chicken with salt, pepper and oregano and dredge it in flour.
4. Sauté the chicken over medium-high heat until golden brown, about 2 minutes on each side. Transfer the chicken to a shallow baking dish. Pour the tomato sauce over the chicken and sprinkle with both cheeses.
5. Bake for 15 to 20 minutes until the sauce is bubbling and the cheese is melted and lightly golden. Let stand for 5 minutes before serving.