Follow these simple steps to create your Keto Chicken Parmesan Casserole:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Chicken: Cut the chicken breasts into bite-sized pieces. Season with salt, pepper, garlic powder, and Italian seasoning.
3. Sauté the Chicken: In a large skillet over medium heat, cook the chicken pieces until browned and cooked through (approximately 5-7 minutes). Remove from heat.
4. Prepare Egg Mixture: In a bowl, whisk together the eggs.
5. Combine Ingredients: In a large mixing bowl, mix the cooked chicken with marinara sauce and the egg mixture until well blended.
6. Layer the Casserole: Transfer the chicken mixture into a greased 9×13 inch baking dish. Spread evenly.
7. Add Cheese: Sprinkle the shredded mozzarella cheese and grated Parmesan cheese on top.
8. Bake: Place the casserole in the preheated oven. Bake for 30-35 minutes or until the cheese is bubbly and golden.
9. Cool: Allow the casserole to cool for 5-10 minutes before serving to let it set.
10. Garnish and Serve: Garnish with fresh basil or parsley if desired. Enjoy your delicious meal!

These steps ensure that your Keto Chicken Parmesan Casserole is prepared efficiently and tastes amazing!