Creating Garlic Parmesan Chicken Bake is straightforward if you follow these steps:

1. Preheat Oven: Start by preheating your oven to 375°F (190°C).
2. Prepare Baking Dish: Lightly grease a baking dish with olive oil to prevent sticking.
3. Mix Cheese and Seasonings: In a medium bowl, combine the Parmesan cheese, breadcrumbs, garlic powder, onion powder, salt, and pepper.
4. Prep Chicken: Place the chicken breasts in the prepared baking dish. Ensure they are evenly spaced.
5. Spread Sour Cream: Evenly spread sour cream over the chicken breasts. This will keep the chicken moist and provide flavor.
6. Apply Cheese Mixture: Sprinkle the cheese and breadcrumb mixture generously over the sour cream-covered chicken breasts.
7. Bake Chicken: Place the dish in the preheated oven and bake for 30-35 minutes, or until the chicken is cooked through and the topping is golden brown.
8. Check Doneness: Use a meat thermometer to ensure that the chicken has reached an internal temperature of 165°F (75°C).
9. Let Rest: Once cooked, remove the dish from the oven and let it rest for 5 minutes before serving.
10. Garnish: Optionally, sprinkle fresh chopped parsley over the top for an added burst of color and flavor.

Following these simple instructions will lead you to a dish that’s not only filling but also delightful and packed with flavor!