Prepare a baking sheet by spraying it with cooking spray. Preheat the oven to 400ºF.
In a medium mixing bowl, combine the bread crumbs, Parmesan, salt, pepper, garlic powder, and onion powder.
In a separate bowl, whisk the eggs together until combined.
One chicken breast at a time, coat both sides of the chicken in the egg, then transfer to the bread crumb mixture. Dredge the chicken in the mixture to ensure both sides are fully coated, then set aside on the baking sheet. Repeat with the remaining chicken breasts, placing them in a single layer on the baking sheet.
Spray the coated chicken breasts with cooking spray, then bake them in the oven for 20 minutes. Remove the chicken from the oven. Top each chicken breast with marinara sauce and shredded mozzarella. Return to the oven for another 10 to 12 minutes or until the chicken is fully cooked.
Notes
Tips for Success
Pound thicker chicken breasts slightly for more even cooking.
Use freshly grated Parmesan for the best flavor.
Keep an eye on the chicken during the second bake to avoid overcooking.
Top with fresh basil or Italian seasoning for added flavor.
How to StoreStore leftover chicken parmesan in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or air fryer for best texture, or microwave for convenience.