HEALTHY CHICKEN BROCCOLI PASTA CASSEROLE

There’s nothing quite like a comforting casserole, especially on a chilly evening. For years, my go-to has been a classic, but I’ve always wanted to find a way to make it a little lighter without sacrificing any of that cozy, cheesy goodness. After a lot of tweaking and taste-testing in my kitchen, I finally landed on this incredible HEALTHY CHICKEN BROCCOLI PASTA CASSEROLE. It’s become a weeknight hero, perfect for feeding my family and even better for leftovers!

Why You’ll Love This HEALTHY CHICKEN BROCCOLI PASTA CASSEROLE

• It’s incredibly comforting and satisfying, just like your favorite casserole should be.
• The creamy, cheesy sauce perfectly coats every bite of pasta, chicken, and tender broccoli.
• It’s surprisingly easy to whip up, even on a busy weeknight.
• This casserole is a fantastic way to get some veggies into your family’s dinner!

Ingredients You’ll Need

• Pasta: Any short pasta shape works beautifully here. Penne, rotini, or even medium shells are great choices!
• Broccoli: I love using frozen cut broccoli for convenience – no chopping needed!
• Butter or Olive Oil: Either works to sauté your aromatics. Choose what you have on hand.
• Small Onion & Garlic: These create the delicious flavor base for our sauce. Don’t skimp on them!
• Flour: This is our thickening agent for the creamy sauce. It helps create that lovely, rich texture.
• Chicken Stock: Use a good quality stock for the best flavor. Vegetable stock is a great alternative if you prefer!
• Milk: Any milk will do, but I usually use 2% for a nice balance of creaminess and lightness.
• Dijon Mustard: Trust me on this one! It adds a subtle tang that really brightens the sauce without making it taste “mustardy.”
• Shredded Sharp Cheddar Cheese: Sharp cheddar gives the best flavor punch. Shredding it yourself from a block will melt much smoother than pre-shredded.
• Diced Cooked Chicken: This recipe is fantastic for using up leftover chicken! If you don’t have any, you can quickly cook some chicken breast before you start.

How to Make HEALTHY CHICKEN BROCCOLI PASTA CASSEROLE Step by Step

First things first, preheat your oven to 400°F. While that’s warming up, you’ll want to get your pasta cooking. Grab a big pot, fill it with generously salted water, and bring it to a rolling boil. Add your pasta and cook it until it’s al dente – that means it still has a little bite to it, which is perfect because it will finish cooking in the oven. The clever part? About two minutes before your pasta is done, toss in your frozen broccoli. This saves you an extra dish and gets those veggies perfectly tender-crisp!

Once your pasta and broccoli are drained, it’s time to make that dreamy cheese sauce. In a sauté pan, melt your butter or olive oil over medium-high heat. Add your thinly sliced onion and let it cook for about 3 minutes, stirring occasionally, until it starts to soften. Then, add your minced garlic and cook for another 3 minutes, stirring, until it’s fragrant. Don’t let it brown too much!

Now for the magic! Sprinkle the flour over your onion and garlic mixture and stir it in well. Let it cook for just one minute – this helps cook out the raw flour taste. Slowly pour in the chicken stock, stirring constantly to get rid of any lumps. Then, add the milk, Dijon mustard, salt, and pepper, stirring until everything is fully combined. Continue to cook, stirring occasionally, until the sauce just starts to simmer and thicken. Remove it from the heat and stir in one cup of your shredded cheddar cheese until it’s completely melted and smooth. This is where all that cheesy goodness comes from!

My Top Tips for Success

• I always make sure my pasta is al dente because it will continue to cook in the oven and you don’t want mushy pasta.
• In my experience, shredding your own cheese makes a huge difference in how smoothly the sauce comes together.
• Don’t be afraid to season generously! A little extra salt and pepper can really make the flavors pop.
• Trust me on this one: adding the broccoli to the pasta water at the end is a genius time-saver.
• If you’re short on time, rotisserie chicken is your best friend for the cooked chicken component.

Common Mistakes to Avoid

• Overcooking the pasta: This is a casserole, so your pasta will cook more in the oven. Cook it al dente to avoid a mushy texture.
• Burning the garlic: Garlic can burn quickly and become bitter. Keep an eye on it and stir frequently.
• Adding cold stock/milk too fast: Slowly incorporating liquids while stirring prevents lumps in your sauce.
• Not stirring the sauce enough: Constant stirring, especially when adding flour and liquids, ensures a smooth, lump-free sauce.
• Skipping the Dijon: While it might seem small, Dijon mustard adds a crucial depth of flavor that you’ll miss if you leave it out.

How to Store HEALTHY CHICKEN BROCCOLI PASTA CASSEROLE

• Refrigerate: Store leftovers in an airtight container in the refrigerator for up to 3-4 days.
• Reheat: Reheat individual portions in the microwave until warmed through, or cover the casserole dish with foil and reheat in a 350°F oven until hot.
• Freeze: While possible, the pasta can become a bit softer after freezing and thawing. If freezing, cool completely, then wrap tightly and freeze for up to 2-3 months. Thaw in the refrigerator overnight before reheating.

Frequently Asked Questions

Can I use fresh broccoli instead of frozen?

Yes, absolutely! If using fresh broccoli, cut it into small florets and add it to the boiling pasta water for the last 2-3 minutes of cooking, just like the frozen variety.

What kind of pasta works best?

Any short pasta shape like penne, rotini, or medium shells works wonderfully. Choose your favorite! The key is to cook it al dente since it will continue to cook in the oven.

Can I make this casserole ahead of time?

You can assemble the casserole completely, cover it, and refrigerate it for up to 24 hours before baking. You might need to add an extra 5-10 minutes to the baking time if baking from cold.

What if my sauce is too thick or too thin?

If your sauce is too thick, you can thin it out with a splash more milk or stock until it reaches your desired consistency. If it’s too thin, let it simmer gently for a few more minutes to reduce and thicken, or whisk in a tiny bit more flour slurry (flour mixed with a little cold water).

I really hope this HEALTHY CHICKEN BROCCOLI PASTA CASSEROLE brings as much comfort and joy to your table as it does to mine. It’s a true family favorite, and I can’t wait for you to try it. If you whip up a batch, please let me know how it turns out!

Print