Creating Hearty High Protein Chicken Parmesan Casserole is simple if you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Pasta: Bring a pot of salted water to a boil. Add the whole wheat pasta and cook until al dente. Drain and set aside.
3. Prepare Chicken: In a large mixing bowl, combine the shredded chicken, marinara sauce, garlic powder, onion powder, Italian seasoning, salt, and pepper.
4. Combine Ingredients: Add the cooked pasta to the chicken mixture and stir until well combined.
5. Layer Casserole: In a greased 9×13 inch baking dish, spread half of the chicken and pasta mixture evenly across the bottom.
6. Add Cheese: Sprinkle half of the mozzarella cheese and half of the Parmesan cheese on top.
7. Top with Remaining Mixture: Layer the remaining chicken and pasta mixture over the cheese. Then, top with the remaining mozzarella and Parmesan cheese.
8. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the cheese is melted and bubbly.
9. Cool and Garnish: Remove from the oven and let it cool for a few minutes. Garnish with fresh basil if desired.

Following these simple steps will guide you in creating this hearty and satisfying casserole with ease.