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Preheat oven to 375 degrees. Prepare a Pick 13 x 9 or 15 x 10 Handi-Foil baking foil pan with nonstick cooking spray. Learn more about our Featured Products.
Place ½ cup marinara sauce in an even layer on the bottom of the casserole dish.
In a small bowl, mix together the ricotta, ¼ cup parmesan cheese, egg, and ½ teaspoon Italian seasoning until completely blended.
Mix the remaining Italian seasoning with salt and pepper.
Open the chicken breast and sprinkle lightly with half of the seasoning mixture.
Place about 1 tablespoon of the marinara sauce into the chicken.
Top with about ¼ cup of the ricotta mixture. Fold chicken over to close and place in the casserole dish.
Pour oil over the top of the chicken breast and sprinkle with remaining seasoning.
Bake, uncovered, in the oven for 30 to 35 minutes. Check the chicken for an internal temperature of 160 degrees. Remove from the oven and reset the oven temperature, preheating the broiler.
Using a baster, remove any excess juices or oil from the casserole dish.
Top the chicken with remaining marinara sauce, mozzarella cheese, and parmesan cheese.
Place the casserole dish under the broiler allowing the cheese to melt and the chicken to cook to an internal temperature of 165 degrees.
Remove from the oven and allow the chicken to rest for 5 to 10 minutes prior to serving.