01 -
Preheat oven to 375°F. Lightly grease a 9x13 inch baking dish. Cook 12 oz penne pasta according to package directions until al dente. Drain well and set aside. This initial prep sets the stage for your delicious Easy Chicken Penne Casserole Recipe.
02 -
In a large pot or Dutch oven, melt 2 tbsp unsalted butter over medium heat. Add 1/2 medium yellow onion, finely diced, and cook for 3-4 minutes until softened. Stir in 2 cloves garlic, minced, and 1 tsp dried Italian seasoning, cooking for another minute until fragrant.
03 -
Sprinkle 2 tbsp all-purpose flour into the pot with the aromatics, stirring for 1 minute to create a roux. Gradually whisk in 2 cups low-sodium chicken broth and 1 cup 2% milk until smooth. Bring to a gentle simmer, stirring constantly, until the sauce thickens slightly.
04 -
Reduce heat to low. Stir in 4 oz cream cheese, softened and cut into cubes, until fully melted and smooth. Add 1 cup of the shredded sharp cheddar cheese, stirring until melted and incorporated. Season with salt and black pepper to taste, ensuring a flavorful base for your Easy Chicken Penne Casserole Recipe.
05 -
Add the cooked 12 oz penne pasta and 2 cups cooked chicken, shredded, to the cheese sauce in the pot. Stir gently until all ingredients are evenly coated. This combination forms the hearty base of your Easy Chicken Penne Casserole Recipe.
06 -
Pour the pasta and chicken mixture into the prepared 9x13 inch baking dish. In a small bowl, combine the remaining 1/2 cup shredded sharp cheddar cheese with 1/2 cup panko breadcrumbs. Sprinkle this mixture evenly over the top of the casserole.
07 -
Bake for 25-30 minutes, or until the casserole is bubbly around the edges and the topping is golden brown. For the best Easy Chicken Penne Casserole Recipe, let it rest for 5-10 minutes before serving. Garnish with 2 tbsp fresh parsley, chopped.