1/2 tsp Italian seasoning and red pepper flakes
In skillet add oil and chicken .
turn the chicken to another side and add the salt and black pepper .
take the chicken from skillet and add oil and onion,garlic .
Add the tomato sauce .
Add the Italian seasoning and red pepper flakes .
Add the chicken breast to tomato sauce and let it about 10 min .
Add the mozzarella cheese above chicken , and cover it about 5 min, and serve it .