01 -
Preheat your oven to 375°F. Cook 12 oz penne pasta according to package directions until al dente. Drain the pasta thoroughly and set it aside. This initial prep sets the stage for your Easy Chicken Penne Casserole Recipe.
02 -
Dice 1 lb boneless, skinless chicken breast. In a large oven-safe skillet or Dutch oven, cook the chicken over medium-high heat until browned. Add 1/2 yellow onion, diced, and 2 cloves garlic, minced; cook until softened. Season with 1 tsp dried Italian seasoning, 1/2 tsp black pepper, and salt to taste.
03 -
Melt 2 tbsp unsalted butter in the same skillet. Stir in 2 tbsp all-purpose flour and cook for 1 minute. Gradually whisk in 2 cups whole milk and 1 cup low-sodium chicken broth. Bring the mixture to a gentle simmer, then stir in 4 oz softened cream cheese until the sauce is smooth.
04 -
Remove the skillet from the heat. Stir in 1 cup shredded sharp cheddar cheese (reserving 1/2 cup for topping) and 1/4 cup grated Parmesan cheese until melted and fully incorporated. Fold in 1 cup frozen peas and the cooked penne pasta. This forms the delicious base for your Easy Chicken Penne Casserole Recipe.
05 -
Return the cooked chicken and onion mixture to the skillet with the pasta and sauce. Mix everything well to ensure all ingredients are evenly coated. Sprinkle the remaining 1/2 cup shredded sharp cheddar cheese and 1/2 cup Panko breadcrumbs evenly over the top of the Easy Chicken Penne Casserole Recipe.
06 -
Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly and the topping is golden brown. For the best Easy Chicken Penne Casserole Recipe, let it rest for 5-10 minutes before serving to allow the sauce to set.