Easy Chicken Penne Casserole

Featured in Dinner Classics.

Easy Chicken Penne Casserole is a comforting, family-friendly meal. Creamy pasta, tender chicken, and cheesy goodness baked to perfection. Simple weeknight dinner!
Samuel Green - Recipe Author
Updated on March 10, 2026 at 02:32 AM
Prep Time: 15 min Cook Time: 30 min Total Time: 45 min 6 Servings Beginner
Easy Chicken Penne Casserole - Featured Image Pin it
Easy Chicken Penne Casserole | Recipes By Megan

Hey, friend! So, you know those recipes that just hit different? The ones that become a staple, a go-to comfort hug in a bowl? For me, that's this incredible Chicken Penne Casserole. I stumbled upon a basic version years ago when I was a new mom, desperate for something easy, cheesy, and satisfying. One busy weeknight, after a particularly chaotic day, I threw it together, and honestly, it was love at first bite. It’s been evolving in my kitchen ever since, becoming the ultimate weeknight hero!

Oh man, I remember one time, I was so focused on chatting with my sister on the phone while making this. I got to the sauce part, poured in the milk... but it wasn't milk! It was cream of mushroom soup, oops! I didn't expect that. The sauce looked... chunky. I had a good laugh, scooped it all out, and started over. Lesson learned: multitasking and cooking don't always mix!

All the Goodies for Your Chicken Penne Casserole

  • 12 oz penne pasta, uncooked: Penne is my go-to for this casserole because those little tubes are just perfect for cradling all that creamy sauce. You want it al dente, maybe even a tiny bit undercooked, because it'll finish cooking in the oven and soak up all those amazing flavors. Trust me, nobody wants mushy pasta in their Chicken Penne Casserole! It's the sturdy backbone of the whole dish, holding up beautifully against the rich sauce and tender chicken. Don't skimp on quality here, it makes a difference.
  • 2 cups cooked chicken, shredded: This is where the 'easy' part really shines, hon! A rotisserie chicken is your best friend here. Grab one, shred it up, and you've saved yourself so much time and effort. It adds that tender, juicy protein without any fuss. I've tried cooking chicken breasts from scratch, but honestly, the rotisserie just brings a little extra flavor and convenience that makes this Chicken Penne Casserole a weeknight dream. Plus, who doesn't love a good shortcut?
  • 2 tbsp unsalted butter / 2 tbsp all-purpose flour: Ah, the humble beginnings of our glorious sauce! This butter and flour combo, a classic roux, is what gives our sauce that luscious, thick body. It’s like building a cozy blanket for all your ingredients. Don't rush this step, let that flour cook out a bit, like you're gently toasting it, so you don't get a raw flour taste. It's the secret to a smooth, velvety sauce that clings to every piece of pasta and chicken.
  • 2 cups low-sodium chicken broth / 1 cup 2% milk: These liquids are the heart of our creamy sauce, transforming that roux into something magical. I opt for low-sodium broth so I can control the saltiness myself nothing worse than an overly salty casserole, right? And 2% milk gives you that perfect balance of creaminess without being too heavy. It's about building layers of flavor and richness that will make you want to lick the spoon!
  • 4 oz cream cheese, softened and cut into cubes: This is my secret weapon for an unbelievably silky, rich sauce! Softened cream cheese melts like a dream and adds a tangy, luxurious depth that you just can't get with other cheeses alone. It makes the sauce so incredibly smooth and velvety, coating every single bit of pasta and chicken. Seriously, don't skip this step it takes the casserole from good to 'OMG, what's in this?!'
  • 1/2 medium yellow onion, finely diced / 2 cloves garlic, minced / 1 tsp dried Italian seasoning: These aren't just background players, they're the flavor foundation! Sautéing the onion until translucent brings out its sweetness, and garlic adds that pungent, aromatic kick. Italian seasoning? It’s a flavor shortcut, a blend of herbs that just screams comfort. Together, they create a warm, inviting aroma that fills your kitchen and makes everyone excited for dinner. It's the savory soul of the dish.

Making Your Chicken Penne Casserole: Step-by-Step Goodness

Step 1: Prep Oven & Pasta:
First things first, get that oven preheating to 375°F (190°C) we want it nice and toasty for our glorious casserole. Then, grab your biggest pot and get that water boiling for the penne. Remember to salt the water generously, like the sea! Cook your pasta just until it's al dente, maybe a minute or two shy of the package directions. It’s going to finish cooking in the oven, soaking up all that creamy goodness. This sets the stage for a perfect Chicken Penne Casserole, so don't rush it!
Step 2: Sauté Aromatics:
Now for the delicious smells! Melt that butter in a large oven-safe skillet or Dutch oven over medium heat. Toss in your finely diced onion and let it get soft and translucent, about 5-7 minutes. Once it’s happy, add your minced garlic and Italian seasoning. Oh, the aroma! Cook for just another minute until fragrant don't let that garlic burn, my friend, or it'll get bitter. This aromatic base is crucial for the depth of flavor in our Chicken Penne Casserole.
Step 3: Make Creamy Sauce:
Time for the magic sauce! Sprinkle the flour over your sautéed aromatics and stir it in, cooking for about a minute to create a roux. This is where the thickening happens! Slowly, I mean slowly, whisk in the chicken broth, making sure there are no lumps. Then, pour in the milk and bring it to a gentle simmer, stirring constantly. You'll see it start to thicken beautifully. This creamy foundation is what makes our Chicken Penne Casserole so ridiculously good.
Step 4: Add Cheeses:
Oh, this is my favorite part! Once your sauce is thick and bubbly, take it off the heat. Now, drop in those softened cream cheese cubes. Stir, stir, stir until it's completely melted and smooth. The sauce will transform into this velvety, luxurious dream. Taste it, adjust seasonings if you need to. This cheesy goodness is what elevates this dish to ultimate comfort food status. It’s nearly ready to become your favorite Chicken Penne Casserole!
Step 5: Combine Ingredients:
Okay, everything's coming together! Into that glorious creamy sauce, gently fold in your cooked penne pasta and the shredded rotisserie chicken. Give it a good stir, making sure every single piece of pasta and chicken is coated in that luscious sauce. This is where the dish starts to look like the hearty, comforting meal it's about to become. You want everything well-combined and happy, ready for its oven spa day.
Step 6: Assemble Casserole:
If you used an oven-safe skillet, great! If not, transfer your mixture to a 9x13 inch baking dish. Spread it out evenly. You can sprinkle a little extra cheese on top now if you're feeling extra decadent (and honestly, why wouldn't you be?). This is the final step before baking, getting everything tucked in for its journey to golden, bubbly perfection. A little visual appeal never hurt anyone, right?
Step 7: Bake & Serve:
Pop that beauty into your preheated oven and bake for 20-25 minutes, or until it's bubbly around the edges and lightly golden on top. If you added extra cheese, you want it melted and slightly browned. Let it rest for 5-10 minutes after taking it out it helps the sauce set up a bit. Then, scoop out generous portions and watch those happy faces. This dish is pure comfort, ready to warm your soul!

Making this Chicken Penne Casserole is such a joy for me. There's something so satisfying about transforming simple ingredients into a dish that brings smiles to hungry faces. It’s often my go-to when I need a culinary hug, a reminder of cozy evenings and happy tummies. The process, from sautéing the aromatics to watching the sauce thicken, just feels like home.

Keeping Your Chicken Penne Casserole Fresh: Storage Hacks

Okay, so you’ve got leftovers of this amazing Chicken Penne Casserole lucky you! Let it cool completely before transferring it to an airtight container. It'll keep beautifully in the fridge for 3-4 days. To reheat, you can pop individual portions in the microwave, or for a larger batch, cover it loosely with foil and warm in the oven at 300°F (150°C) until heated through. If it seems a little dry, sometimes I add a splash of milk or broth before reheating. I've definitely learned the hard way that covering it while warm leads to condensation and soggy pasta, yuck!

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Easy Chicken Penne Casserole - Image 1 | Recipes By Megan

Swapping Ingredients for Your Perfect Chicken Penne Casserole

Life happens, and sometimes you don't have exactly what the recipe calls for, right? I've experimented a lot with this Chicken Penne Casserole! No penne? Rotini or ziti work great. No rotisserie chicken? Cooked chicken breast or even turkey leftovers are fantastic. Want to sneak in some veggies? Frozen peas, corn, or diced bell peppers can be stirred in with the pasta. For a richer sauce, swap 2% milk for whole milk or even a splash of heavy cream. Don't be afraid to make it your own, that's the fun of home cooking!

What to Serve with Your Amazing Chicken Penne Casserole

So, you've got this glorious Chicken Penne Casserole bubbling hot out of the oven, now what? Honestly, it's a complete meal all on its own, but a fresh, crisp green salad with a light vinaigrette is always a welcome counterpoint to the richness. A side of crusty garlic bread is also a non-negotiable in my house perfect for soaking up any extra sauce! Sometimes, I even serve it with some steamed broccoli or green beans for an extra pop of color and veggies. Simple sides let the casserole truly shine.

The Comforting History Behind Chicken Penne Casserole

While this particular Chicken Penne Casserole recipe is very much an American comfort food staple, its roots are a beautiful blend of culinary traditions. Casseroles themselves became wildly popular in America in the mid-20th century, thanks to innovations like oven-safe dishes and the rise of convenience foods. The idea of baking pasta with a creamy sauce and protein, however, draws heavily from Italian-American influences, reminiscent of baked ziti or lasagna. It's a testament to how food evolves, taking the best of different cultures to create something new and utterly delicious, a true melting pot dish for busy families.

And there you have it, friends! My go-to, tried-and-true recipe for a comforting, easy, and utterly delicious meal. This dish has brought so much joy to my table over the years, and I hope it does the same for yours. If you give this a try, please, please let me know! Drop a comment below with your thoughts or any fun tweaks you made. Happy cooking, and bon appétit!

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Easy Chicken Penne Casserole - Image 2 | Recipes By Megan

Your Burning Questions About Chicken Penne Casserole, Answered!

→ Can I assemble this casserole ahead of time?

Absolutely! You can assemble the entire casserole, cover it tightly, and refrigerate it for up to 24 hours. When you're ready to bake, just add about 10-15 minutes to the baking time since it’s going in cold. It's a lifesaver for busy weeknights, making this Chicken Penne Casserole even easier!

→ What if I don't have penne pasta?

No worries at all! This recipe is pretty forgiving. You can easily swap penne for other short pasta shapes like rotini, ziti, or even elbow macaroni. Just make sure to cook it al dente as directed so it doesn't get too soft in the oven. Use what you have on hand!

→ Can I add vegetables to this recipe?

Yes, please do! Frozen peas or corn are super easy to stir in with the cooked pasta. Diced bell peppers, spinach, or even some sautéed mushrooms would also be delicious additions. Just make sure any fresh veggies are cooked down a bit so they don't release too much water during baking.

→ How do I make the sauce thicker?

If your sauce seems too thin, you can try simmering it for a few extra minutes before adding the cheese, allowing it to reduce a bit. Also, ensuring your roux (butter and flour mixture) cooks for at least a minute helps activate its thickening power. Don't forget that resting time after baking helps it set too!

→ Can I use a different type of cheese?

You bet! While cream cheese gives it that signature silky texture, you can certainly add other cheeses. A sprinkle of sharp cheddar or Monterey Jack on top would be fantastic for extra cheesiness. Feel free to experiment with your favorites to customize the flavor!

Easy Chicken Penne Casserole

Easy Chicken Penne Casserole is a comforting, family-friendly meal. Creamy pasta, tender chicken, and cheesy goodness baked to perfection. Simple weeknight dinner!

4.7 out of 5
(65 reviews)
Prep Time
15 Minutes
Cook Time
30 Minutes
Total Time
45 Minutes

Category: Dinner Classics

Difficulty: Beginner

Cuisine: American

Yield: 6 Servings

Dietary: ~

Published: March 10, 2026 at 02:31 AM

Ingredients

→ Hearty Foundation

01 12 oz penne pasta, uncooked
02 2 cups cooked chicken, shredded (from a rotisserie chicken for ease)

→ Creamy Comfort Sauce

03 2 tbsp unsalted butter
04 2 tbsp all-purpose flour
05 2 cups low-sodium chicken broth
06 1 cup 2% milk
07 4 oz cream cheese, softened and cut into cubes

→ Savory Enhancers & Toppings

08 1/2 medium yellow onion, finely diced
09 2 cloves garlic, minced
10 1 tsp dried Italian seasoning
11 1 1/2 cups shredded sharp cheddar cheese, divided
12 1/2 cup panko breadcrumbs
13 2 tbsp fresh parsley, chopped (for garnish)
14 Salt and black pepper to taste

Instructions

Step 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.

Step 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.

Step 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.

Step 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.

Step 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.

Step 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.

Step 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.

Notes

  1. For an even quicker prep, use a store-bought rotisserie chicken. Shredding it while still warm makes the process much easier.
  2. Leftover casserole can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat gently in the oven or microwave.
  3. Feel free to add a cup of frozen peas or corn to the mixture for extra veggies and color. You can also experiment with other cheeses like Monterey Jack or Gruyere.
  4. Serve this comforting casserole with a simple green salad or some crusty bread to complete your meal.

Tools You'll Need

  • Large pot
  • Large skillet
  • 9x13 inch baking dish
  • Whisk
  • Measuring cups and spoons
  • Cutting board
  • Knife

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Wheat
  • Dairy

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 560 kcal
  • Total Fat: 24 g
  • Total Carbohydrate: 52 g
  • Protein: 34 g

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Easy Chicken Penne Casserole

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