Add the vegetable oil to a large skillet over medium high heat. Once the oil is hot and begins to shimmer, add the onions, carrots, salt, pepper and garlic powder. Sauté for 8 to 10 minutes until the vegetables are softened and begin to brown slightly. Remove from the heat and gently stir in the canned soups and milk. Add the mixture to the bottom of the prepared baking dish. Add the shredded chicken to the vegetable mixture and mix together. Sprinkle the stuffing evenly over the top.
2 Tablespoons vegetable oil, 1 yellow onion, 1 large carrot, 2 teaspoons kosher salt, ½ teaspoon black pepper, 1 teaspoon garlic powder, 1 10.5 ounce can cream of chicken soup, 1 10.5 ounce can cream of mushroom soup, ½ cup milk, 3 cups shredded