Creating the Longhorn Steakhouse Parmesan Chicken is simple with these clear steps. Follow them carefully for delicious results:

1. Preheat the Oven: Start by preheating your oven to 400°F (200°C).
2. Prepare Baking Sheet: Line a baking sheet with parchment paper or lightly grease it to prevent sticking.
3. Prepare Chicken: Place chicken breasts between two sheets of plastic wrap. Using a meat mallet, pound each breast to an even thickness of about ½ inch.
4. Create Coating Mixture: In a shallow bowl, combine the grated Parmesan cheese, breadcrumbs, garlic powder, onion powder, salt, and black pepper. Mix well.
5. Prepare Egg Wash: In a separate bowl, beat the eggs and olive oil together until well combined.
6. Coat Chicken: Dip each chicken breast in the egg mixture, ensuring it’s fully coated. Then, dredge it in the Parmesan breadcrumb mixture, pressing down lightly to adhere the coating.
7. Arrange on Baking Sheet: Place the coated chicken breasts on the prepared baking sheet, spacing them evenly.
8. Bake: Bake in the preheated oven for 25-30 minutes or until the chicken is golden brown and cooked through. The internal temperature should reach 165°F (74°C).
9. Garnish and Serve: If desired, sprinkle chopped parsley over the top before serving for added color and flavor.