Chicken Broccoli Pasta Casserole – A Healthy Twist on a Classic Favorite

If you’re looking for a nutritious, comforting meal that’s perfect for weeknight dinners, Chicken Broccoli Pasta Casserole is just what you need. This dish combines tender pasta, perfectly cooked chicken, and fresh broccoli, all tossed in a creamy, flavorful sauce made with garlic, Dijon mustard, and sharp cheddar cheese. The result is a casserole that feels indulgent but is packed with nutrients.

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This is a lighter take on the classic casserole, without sacrificing any flavor. Using wholesome ingredients like chicken stock and fresh broccoli, this dish gives you all the comforting satisfaction of a traditional casserole but with a healthy twist.

The Inspiration Behind Chicken Broccoli Pasta Casserole

Casseroles are a beloved comfort food staple, but many can be heavy and loaded with extra fats and calories. Chicken Broccoli Pasta Casserole offers a healthy alternative that still feels comforting and filling. By incorporating lean protein from the chicken, fiber-rich broccoli, and a creamy sauce made with milk and sharp cheddar, this dish strikes a balance between indulgence and nutrition.

What’s great about this casserole is its versatility—whether you're using leftover chicken from another meal or switching up the type of pasta, it’s a dish that adapts to your needs and preferences. Plus, it’s kid-friendly and perfect for busy weeknights when you want something easy yet nutritious.

Why Chicken Broccoli Pasta Casserole is the Ideal Weeknight Meal

This casserole offers everything you want in a satisfying dinner: it's quick to prepare, easy to clean up, and full of flavors the whole family will love. The broccoli adds a pop of freshness and texture to complement the cheesy sauce, while the chicken provides a hearty source of protein. The garlic and Dijon mustard in the sauce give it a delicious depth of flavor, ensuring every bite is packed with taste.

Another perk? This casserole is incredibly versatile. If you’re looking to make it vegetarian, you can easily substitute the chicken for plant-based protein or omit it altogether, making it a dish that caters to a wide range of dietary preferences.

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Fun Facts: Broccoli’s Superfood Status and the Comfort of Casseroles

Did you know that broccoli is considered one of the most nutrient-dense vegetables? It’s loaded with vitamins C and K, and it also boasts powerful antioxidants that help boost the immune system and support overall health. Not only does broccoli add crunch and color to this casserole, but it also ups the nutritional value, making this dish a balanced meal you can feel good about serving.

Casseroles, on the other hand, have been a family favorite for generations. They gained popularity in the United States during the 1950s as an easy, one-dish meal perfect for feeding large families. By adding fresh ingredients like broccoli and lightening up the sauce, we’ve given this classic dish a healthier spin that doesn’t skimp on flavor.

Storage and Reheating Tips

This casserole stores wonderfully, making it ideal for leftovers or meal prep. After cooking, allow the casserole to cool completely before transferring it to an airtight container. It can be stored in the refrigerator for up to 3 days. To reheat, place individual servings in the microwave or warm the entire casserole in a 350°F (175°C) oven until heated through.

To freeze, wrap the casserole tightly in plastic wrap and foil, and store it in the freezer for up to 2 months. When ready to enjoy, thaw it overnight in the refrigerator and reheat in the oven.

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Chicken Broccoli Pasta Casserole Recipe

Ingredients:

• 8 oz pasta (any short pasta like rotini, fusilli, or penne will work)
• 12 oz broccoli (frozen or fresh; if using fresh, steam or blanch it before adding)
• 2 tbsp butter or olive oil
• 1 small onion, thinly sliced
• 4 cloves garlic, minced
• 3 tbsp flour
• 1 cup chicken stock (or vegetable stock for a vegetarian version)
• 1 ½ cups milk
• 1 tsp Dijon mustard
• ½ tsp sea salt
• ¼ tsp fresh-cracked black pepper
• 2 cups shredded sharp cheddar cheese, divided (8 oz)
• 1 lb diced cooked chicken (leftover or rotisserie chicken works great!)

Instructions:

1. Cook the pasta: Preheat your oven to 350°F (175°C). Cook the pasta according to package directions until al dente. Drain and set aside.
2. Cook the broccoli: If using frozen broccoli, cook it according to package instructions. If using fresh broccoli, steam or blanch it until tender but still bright green.
3. Prepare the sauce: In a large skillet over medium heat, melt the butter (or heat the olive oil). Add the sliced onion and cook for about 5 minutes, or until softened. Add the garlic and cook for an additional minute until fragrant.
4. Make the roux: Stir in the flour and cook for 1 minute, stirring constantly. Slowly whisk in the chicken stock and milk, stirring to combine and prevent lumps. Add the Dijon mustard, salt, and pepper. Continue cooking the sauce, stirring often, until it thickens—about 5 minutes.
5. Add the cheese: Stir in 1 ½ cups of the shredded cheddar cheese, reserving the remaining ½ cup for the topping. Continue stirring until the cheese is melted and the sauce is smooth.
6. Combine and assemble: In a large bowl, combine the cooked pasta, broccoli, diced chicken, and cheese sauce. Mix well to coat everything evenly. Pour the mixture into a greased 9x13-inch casserole dish.
7. Top and bake: Sprinkle the remaining ½ cup of shredded cheddar over the top. Bake for 25-30 minutes, or until the casserole is bubbling and the cheese on top is golden.
8. Serve and enjoy: Let the casserole cool slightly before serving. Garnish with fresh parsley if desired.

Final Thoughts

Chicken Broccoli Pasta Casserole offers the perfect balance between comfort and nutrition. The creamy cheese sauce and tender pasta satisfy any craving for comfort food, while the broccoli and chicken provide important nutrients. It’s a dish that feels indulgent but is packed with healthy ingredients, making it perfect for family dinners or meal prep.