Making Longhorn Parmesan Crusted Chicken is simple if you follow these easy steps:

1. Preheat Oven: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or lightly grease it with olive oil.
2. Prepare Chicken: Place the chicken breasts between two sheets of plastic wrap. Gently pound them to an even thickness using a meat mallet or rolling pin.
3. Make Egg Mixture: In a bowl, whisk together the eggs and Dijon mustard until well combined.
4. Combine Coatings: In another bowl, mix the grated Parmesan cheese, Italian breadcrumbs, garlic powder, onion powder, dried herbs, salt, and pepper.
5. Coat Chicken: Dip each chicken breast into the egg mixture, allowing any excess to drip off. Then, coat it thoroughly in the Parmesan breadcrumb mixture, pressing gently to adhere.
6. Arrange on Baking Sheet: Place the coated chicken breasts onto the prepared baking sheet.
7. Add Oil: Lightly spray the tops of the chicken with olive oil or drizzle with a little olive oil to help them crisp up during baking.
8. Bake: Bake in the preheated oven for 25-30 minutes, or until the chicken is cooked through and the crust is golden brown.
9. Check Doneness: Ensure that the internal temperature of the chicken reaches 165°F (75°C) for safe consumption.
10. Rest: Remove the chicken from the oven and allow it to rest for a few minutes before serving.

Following these steps will lead you to a delicious plate of Longhorn Parmesan Crusted Chicken that is sure to impress!