On the IP turn on Saute mode on Low and once it reads Hot, add the oil and cook the garlic stirring for a few seconds.
Stir in the marinara sauce, ½ cup of Parmesan cheese, oregano, Italian herbs, basil, salt, and pepper.
Season the chicken with the salt and pepper.
Increase the sauté heat to medium and add the seasoned chicken into the sauce. Try not to overlap it. Spoon some of the sauce on top of the chicken.
Lock the lid, close the evalce and cook on low pressure for 4 minutes after which manually release the remaining pressure.
Preheat the broil in the oven.
Grease a baking sheet with olive oil and add some of the marinara sauce to the baking sheet. Add thee chicken breasts.
Top with some of the sauce and sprinkle the mozzarella and the remaining Parmesan cheesee evenly over the chicken. Broil until the cheese is bubbly and melted.
Scoop the remaining sauce into a serving dish, top with the chicken and serve sprinkled with fresh chopped basil.