Creating the perfect Creamy Chicken Pasta Bake is simple if you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Cook Pasta: Boil the pasta according to package instructions until al dente. Drain and set aside.
3. Prepare Sauce: In a large saucepan, combine the heavy cream, chicken broth, garlic powder, onion powder, Italian seasoning, salt, and pepper. Heat over medium heat until warm.
4. Combine Ingredients: In a large bowl, mix the cooked pasta, chicken, mixed vegetables, and the sauce until well combined.
5. Transfer to Baking Dish: Pour the mixture into a greased baking dish, spreading it evenly.
6. Add Cheese: Sprinkle the grated cheddar cheese on top of the pasta mixture.
7. Breadcrumb Topping: If desired, sprinkle breadcrumbs over the cheese for a crunchy topping.
8. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the cheese is bubbly and golden.
9. Garnish: Remove from the oven and let cool for a few minutes. Sprinkle with chopped parsley before serving.

These steps will guide you in creating a creamy chicken pasta bake that is sure to delight everyone at your table.