Creating this delicious Chicken Noodle Casserole is straightforward. Follow these steps to prepare your meal:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C).
2. Cook Noodles: In a large pot, cook the egg noodles according to package instructions. Drain and set aside.
3. Mix Ingredients: In a large mixing bowl, combine the cream of chicken soup, sour cream, chicken broth, garlic powder, onion powder, and spices. Mix until well combined.
4. Add Chicken and Veggies: Stir in the chopped cooked chicken and frozen mixed vegetables, blending them into the mixture.
5. Combine with Noodles: Gently fold in the cooked noodles until everything is evenly coated with the creamy mixture.
6. Prepare Baking Dish: Grease a 9×13-inch baking dish. Pour the chicken noodle mixture into the dish, spreading it out evenly.
7. Top with Cheese: Sprinkle the shredded cheddar cheese generously over the top of the casserole.
8. Cracker Topping: In a small bowl, mix the crushed butter crackers with melted butter. Spread this mixture evenly over the cheese layer for a crunchy topping.
9. Bake: Place the dish in the preheated oven and bake for 30-40 minutes or until heated through and bubbly.
10. Cool Slightly: Once cooked, remove from the oven and allow it to cool for about 5-10 minutes before serving.

This step-by-step guide ensures that you’ll create a mouth-watering Chicken Noodle Casserole filled with flavor and character.