Creating Longhorn Steakhouse Parmesan Chicken is as easy as following these clear steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare Baking Sheet: Line a baking sheet with parchment paper or lightly grease it to prevent sticking.
3. Mix Dry Ingredients: In a shallow dish, combine the flour, garlic powder, onion powder, Italian seasoning, salt, and pepper.
4. Prepare Eggs: In another bowl, whisk together the eggs and milk until blended.
5. Combine Breadcrumbs and Cheese: In a third dish, mix the breadcrumbs with the grated Parmesan cheese.
6. Coat Chicken: Take each chicken breast, first dredging it in the flour mixture, then dipping it in the egg mixture, and finally coating it with the breadcrumb and cheese mixture.
7. Sear Chicken: In a large skillet, heat a few tablespoons of olive oil over medium-high heat. Add chicken and sear each side until golden brown, about 4-5 minutes per side.
8. Transfer to Oven: Once seared, transfer the chicken breasts to the prepared baking sheet.
9. Bake: Place the baking sheet in the preheated oven and bake for about 15-20 minutes, or until the chicken reaches an internal temperature of 165°F (75°C).
10. Add Marinara Sauce: Remove from the oven and top each chicken breast with marinara sauce. Return to the oven for an additional 5 minutes to heat the sauce.
11. Garnish: After baking, remove the chicken from the oven and garnish with fresh parsley before serving.

Following these step-by-step instructions will make sure you create Longhorn Steakhouse Parmesan Chicken that’s as delicious as it is visually appealing.