Creating Chicken Crescent Roll Casserole is a straightforward process when you follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Baking Dish: Lightly grease a 9×13-inch baking dish with cooking spray or olive oil.
3. Mix Ingredients: In a large bowl, combine the shredded chicken, cream of chicken soup, mixed vegetables, half of the cheddar cheese, garlic powder, onion powder, salt, and pepper. Mix until well combined.
4. Open Crescent Rolls: Unroll the crescent roll dough and separate it into individual triangles.
5. Layer Filling: Spread the chicken and vegetable mixture evenly in the prepared baking dish.
6. Arrange Dough: Top the filling with the crescent roll triangles, overlapping them slightly to cover the mixture.
7. Add Cheese: Sprinkle the remaining cheddar cheese over the top of the crescent roll layer.
8. Bake: Place in the preheated oven and bake for 25-30 minutes, or until the crescent rolls are golden brown and the filling is bubbly.
9. Cool: Allow the casserole to cool for about 5 minutes before serving.

Following these steps ensures a delightful casserole that will wow your family and friends without a hitch.