If you’re looking for a dish that feels like a cozy hug on a plate but doesn’t veer off your healthy eating path, this Healthier Broccoli Chicken Casserole Recipe is your new best friend. It brings together tender whole-wheat pasta, vibrant broccoli, succulent chicken, and a creamy, cheesy sauce that isn’t bogged down by heavy cream or endless butter. The balance of fresh vegetables and lean protein wrapped up in a warm, bubbling casserole is genuinely comforting without the guilt. Whether you’re feeding a family or meal prepping for the week, this casserole promises nourishment and satisfaction in every bite.
Ingredients You’ll Need
These ingredients are thoughtfully chosen to create a casserole bursting with flavor and texture—each one playing a vital role in making this healthier spin utterly delicious.
- 8 ounces whole-wheat rotini pasta: Adds hearty texture and wholesome grains for fiber-packed satisfaction.
- 1 large head of broccoli (about 1 pound): Brings a fresh crunch and vibrant green color loaded with nutrients.
- 2 tablespoons butter or olive oil: Used for sautéing, it imparts a golden richness without overloading fats.
- 1 small white onion, thinly sliced: Adds subtle sweetness and depth to the sauce base.
- 8 ounces baby bella (cremini) mushrooms, thinly sliced: Earthy flavor and a meaty texture that complements the chicken perfectly.
- 4 cloves garlic, minced: Provides a fragrant kick that wakes up every other ingredient.
- 3 tablespoons flour: Helps thicken the sauce to a luscious consistency without heaviness.
- 1 cup chicken or vegetable stock: Builds a savory base for the creamy sauce.
- 1 1/2 cups milk: Keeps the sauce smooth and creamy yet light.
- 1 teaspoon Dijon mustard: Adds a subtle tang that brightens the flavor profile.
- 1/2 teaspoon fine sea salt: Enhances all the flavors without overpowering them.
- 1/4 teaspoon freshly-cracked black pepper: Brings just the right touch of warmth.
- 2 cups shredded sharp cheddar cheese, divided: Provides melty, cheesy goodness balanced between the sauce and topping.
- 2 cups diced or shredded cooked chicken: Lean protein that makes this casserole a fulfilling meal.
How to Make Healthier Broccoli Chicken Casserole Recipe
Step 1: Prepare Pasta and Broccoli
Begin by cooking the whole-wheat rotini pasta until it’s perfectly al dente—tender with just enough bite. About one minute before the pasta finishes cooking, add the broccoli florets to the boiling water so they cook just right: tender yet still bright green and a little crisp. Drain everything and set it aside, so the broccoli maintains its color and texture within the dish.
Step 2: Sauté Aromatics and Mushrooms
In a large skillet, melt the butter or heat the olive oil over medium heat, then add the thinly sliced onions along with the baby bella mushrooms. Cook until they soften and develop a beautiful golden hue. Stir in the minced garlic for extra aroma, cooking just until fragrant, careful not to burn it—this process brings out a savory base that’s incredibly comforting.
Step 3: Make the Creamy Sauce
Sprinkle in the flour and stir thoroughly to coat the vegetables, creating a roux that will thicken the sauce beautifully. Slowly add the chicken or vegetable stock and milk, whisking as you go to avoid lumps. Stir in the Dijon mustard, salt, and black pepper. Simmer gently until the sauce thickens to a silky texture, then fold in 1 cup of the sharp cheddar cheese so it melts into a luscious creamy mixture that’s rich without feeling heavy.
Step 4: Combine and Bake
In a large baking dish, toss together the cooked pasta, broccoli, savory mushroom sauce, and shredded chicken until everything is evenly coated. Pop the dish into the oven and bake uncovered until bubbling hot and the edges start to brown slightly. Then, sprinkle the remaining cheddar cheese evenly over the top and return it to the oven briefly until the cheese is melted, golden, and inviting.
How to Serve Healthier Broccoli Chicken Casserole Recipe
Garnishes
After baking, a sprinkle of freshly cracked black pepper, freshly chopped parsley, or chives takes this casserole to the next level. These simple garnishes add a pop of color and a breath of freshness that compliments the creamy and cheesy layers wonderfully.
Side Dishes
This Healthier Broccoli Chicken Casserole Recipe shines on its own but pairs beautifully with light sides like a crisp green salad with a tangy vinaigrette or a refreshing cucumber and tomato salad. Steamed green beans or roasted carrots also add extra veggies and crunch, rounding out your meal effortlessly.
Creative Ways to Present
You can transform this casserole for a casual weeknight or a special gathering by serving it in individual ramekins for elegant single servings or layering it in a glass casserole that shows off all the vibrant, colorful layers. A dusting of smoked paprika or a drizzle of hot sauce also adds a fun twist for those who enjoy a little extra zing.
Make Ahead and Storage
Storing Leftovers
Leftover casserole keeps beautifully in an airtight container in the refrigerator for up to 3 days. The flavors actually meld together more after resting, so it can be even tastier the next day.
Freezing
If you want to prep in advance, this casserole freezes well. Assemble the dish but don’t bake it yet—cover tightly and freeze for up to 3 months. When you’re ready, thaw overnight in the fridge and bake as directed, adding extra time if needed for thorough heating.
Reheating
To reheat, cover the casserole with foil and warm it in a 350°F oven until hot and bubbly, usually about 20-25 minutes. This keeps the texture moist without drying out the cheesy sauce or pasta.
FAQs
Can I use a different type of cheese?
Absolutely! Sharp cheddar is a classic for this recipe because of its melting quality and bold flavor, but feel free to experiment with mozzarella for creaminess, gouda for a smoky note, or even a blend of cheeses to suit your taste.
Is it possible to make this recipe vegetarian?
Yes, simply omit the chicken and increase the mushrooms or add plant-based protein like chickpeas or tofu. Using vegetable stock keeps it completely vegetarian-friendly without sacrificing flavor.
How can I make this casserole gluten-free?
Swap the whole-wheat pasta for a gluten-free alternative, and replace the regular flour with a gluten-free flour blend or cornstarch for thickening the sauce. The rest of the recipe remains the same and just as delicious.
Can I prepare this casserole ahead of time and bake it later?
Definitely! Assemble everything, cover tightly, and refrigerate for up to 24 hours. Bake as per instructions when you’re ready. This makes busy weeknights so much easier.
What’s the best way to reheat leftover casserole?
Reheat gently covered in the oven to ensure even warming without drying the dish out. If you’re in a rush, microwaving works but add a splash of milk before heating to keep the sauce creamy.
Final Thoughts
This Healthier Broccoli Chicken Casserole Recipe is one of those rare dishes that feels indulgent without any guilt. It combines wholesome ingredients with familiar comfort-food vibes in a way that’s accessible for any home cook. Trust me, once you’ve tried it, this casserole will become a weeknight go-to and a reliable crowd-pleaser. So grab your baking dish and start cooking—you deserve this cozy, nourishing meal.
Print
Healthier Broccoli Chicken Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 6-8 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
- Diet: Low Fat
Description
This Healthier Broccoli Chicken Casserole is a comforting, nutritious dish combining whole-wheat pasta, fresh broccoli, tender cooked chicken, and a creamy mushroom sauce made with sautéed vegetables and sharp cheddar cheese. Baked to bubbly perfection, this casserole offers a flavorful, wholesome meal perfect for family dinners and meal prepping.
Ingredients
Pasta and Vegetables
- 8 ounces whole-wheat rotini pasta
- 1 large head of broccoli, cut into florets (about 1 pound)
Sauce and Flavorings
- 2 tablespoons butter or olive oil
- 1 small white onion, thinly sliced
- 8 ounces baby bella (cremini) mushrooms, thinly sliced
- 4 cloves garlic, minced
- 3 tablespoons flour
- 1 cup chicken or vegetable stock
- 1 1/2 cups milk
- 1 teaspoon Dijon mustard
- 1/2 teaspoon fine sea salt
- 1/4 teaspoon freshly-cracked black pepper
Cheese and Protein
- 2 cups shredded sharp cheddar cheese, divided
- 2 cups diced or shredded cooked chicken
Instructions
- Cook pasta and broccoli: Bring a large pot of salted water to a boil. Add the whole-wheat rotini pasta and cook according to package instructions until al dente, usually about 8-10 minutes. Add the broccoli florets to the boiling water about 1 minute before the pasta finishes cooking to blanch them slightly. Drain the pasta and broccoli together and set aside.
- Prepare the mushroom sauce: In a large skillet over medium heat, melt the butter or heat olive oil. Add the thinly sliced onion and baby bella mushrooms and sauté until soft and caramelized, about 5-7 minutes. Stir in the minced garlic and cook for another 1 minute until fragrant. Sprinkle the flour over the sautéed vegetables and stir well to coat evenly, cooking for 1-2 minutes to remove the raw flour taste. Gradually whisk in the chicken or vegetable stock and milk, ensuring no lumps form. Stir in the Dijon mustard, sea salt, and freshly cracked black pepper. Bring the mixture to a gentle simmer and cook, stirring frequently, until the sauce thickens, about 3-5 minutes. Remove from heat and stir in 1 cup of the shredded sharp cheddar cheese until melted and smooth.
- Assemble and bake the casserole: Preheat your oven to 350°F (175°C). In a large mixing bowl or directly in a baking dish, combine the cooked pasta, blanched broccoli, mushroom cheese sauce, and diced cooked chicken. Mix gently to combine everything evenly. Transfer the mixture into a greased 9×13 inch baking dish if not already using one. Bake uncovered for 20 minutes. Remove the dish from the oven, sprinkle the remaining 1 cup of sharp cheddar cheese evenly over the top, then return to the oven and bake an additional 10-15 minutes until the cheese is melted, bubbly, and slightly golden. Let the casserole rest for a few minutes before serving. Garnish with freshly cracked black pepper and fresh herbs if desired.
Notes
- Use whole-wheat pasta to increase fiber and nutrients compared to regular pasta.
- You can substitute milk with a lower-fat option or plant-based milk to reduce calories or accommodate dietary preferences.
- If you prefer a vegetarian version, omit the chicken and use vegetable stock instead of chicken stock.
- Leftovers can be refrigerated for up to 3 days and reheated in the oven or microwave.
- Adding a sprinkle of breadcrumbs on top before baking can add a crunchy texture.
