Creating Chicken and Green Pea Casserole is a straightforward process. Just follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Combine Ingredients: In a large mixing bowl, combine the shredded chicken, frozen peas, cream of chicken soup, sour cream, garlic powder, onion powder, salt, and pepper. Mix until all ingredients are evenly incorporated.
3. Prepare Baking Dish: Lightly grease a 9×13 inch baking dish with olive oil.
4. Transfer Mixture: Pour the chicken and pea mixture into the prepared baking dish, spreading it out evenly.
5. Top with Cheese: Sprinkle the shredded cheddar cheese evenly over the top of the chicken mixture.
6. Add Bread Crumbs: In a small bowl, mix the bread crumbs with 2 tablespoons of olive oil. Stir well and sprinkle them evenly over the cheese.
7. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the casserole is hot and bubbling, and the top is golden brown.
8. Cool Slightly: Remove the casserole from the oven and let it cool for about 5 minutes.
9. Garnish: Optionally, sprinkle with fresh parsley for a pop of color and added flavor.

These steps will guide you through the process, allowing you to create an incredible Chicken and Green Pea Casserole with ease!