If you are craving something wonderfully comforting, packed with flavor and texture, you must try this Creamy Chicken Noodle Casserole With Mushrooms, Cheddar, and Ritz Cracker Topping Recipe. It’s the perfect blend of tender chicken, luscious cheese sauce, and savory mushrooms nestled among wide egg noodles, all topped with a buttery, crunchy Ritz cracker crust. Every bite delivers a warm hug, making it an ideal weeknight dinner or a cherished potluck dish that will have everyone asking for seconds.

Ingredients You’ll Need
Gathering these simple yet essential ingredients sets you up for success. Each one plays a vital role, from the creamy cheeses creating that rich sauce, to the mushrooms and vegetables adding freshness and depth, and of course the Ritz crackers that give this casserole its irresistible crunch.
- Extra-wide egg noodles (12 ounces): The perfect sturdy noodle to hold up to the creamy sauce and hearty ingredients.
- Salt and pepper, to taste: Simple seasonings that enhance every flavor layer in the dish.
- Olive oil (1 tablespoon): Used to sauté the vegetables, bringing out their natural sweetness.
- Unsalted butter (8 tablespoons, divided): Key for creating a rich roux and adding lusciousness to the cracker topping.
- Mushrooms (10 ounces, sliced): Earthy and meaty, they boost the umami factor and offer great texture contrasts.
- Carrots (2, chopped): Adding a subtle sweetness and a pop of bright color.
- Onion (1, chopped): Brings aromatic depth and savory undertones.
- All-purpose flour (1/4 cup): Thickens the sauce perfectly without any clumps.
- Whole milk (3 cups): Creates the creamy base that makes this casserole so comforting.
- Chicken broth (2 cups, low-sodium or homemade): Adds savory richness without overpowering the other ingredients.
- American cheese (6 ounces, chopped): Melts smoothly to contribute gooey creaminess.
- Sharp cheddar cheese (6 ounces, shredded): Adds a vibrant tang and depth of cheesy flavor.
- Garlic powder (1/4 teaspoon): A subtle kick that brightens the whole dish.
- Dijon mustard (1 tablespoon): A little zing that balances richness and elevates the sauce.
- Cooked chicken (4 cups, diced): The star protein; rotisserie chicken works great for ease and flavor.
- Frozen peas (1 1/2 cups): Adds a pop of sweetness and vibrant green color.
- Ritz crackers (20, broken into small pieces): The secret weapon that creates that addicting golden, buttery topping.
How to Make Creamy Chicken Noodle Casserole With Mushrooms, Cheddar, and Ritz Cracker Topping Recipe
Step 1: Prepare and cook your noodles
Start by boiling your extra-wide egg noodles according to the package directions until just tender. Drain them nicely and season with salt and pepper to infuse some base flavor. This step makes sure your noodles aren’t just bland carriers but part of the delicious whole.
Step 2: Sauté vegetables for depth of flavor
In a large skillet, warm olive oil and half the butter over medium heat. Add mushrooms, chopped carrots, and onions. Cook them gently until they soften and become fragrant, about 7 to 8 minutes. This builds a flavorful foundation and brings out their natural sweetness and earthiness.
Step 3: Make the creamy sauce
Sprinkle the flour over the sautéed veggies and stir for 1 to 2 minutes to cook out the raw flour taste. Slowly whisk in whole milk and chicken broth, bringing the mixture to a gentle simmer. Let it thicken for around 5 minutes, the moment your kitchen starts smelling irresistibly cozy.
Step 4: Add cheese and seasonings
Now, stir in chopped American cheese, shredded sharp cheddar, garlic powder, and Dijon mustard. Watch as the cheeses melt smoothly into the sauce, creating that ultra-creamy, luscious texture that wraps every ingredient in velvety goodness.
Step 5: Combine chicken, peas, and noodles
Fold cooked chicken and frozen peas into the luscious cheese sauce, making sure everything is evenly incorporated. Then gently mix in the seasoned egg noodles. This step brings the protein, veggies, and noodles together, turning it into the hearty filling mixture that makes this casserole a crowd-pleaser.
Step 6: Assemble and add topping
Transfer the entire silky mixture into a greased 9×13-inch baking dish. In a small bowl, melt the remaining butter and toss with crushed Ritz crackers. Evenly sprinkle this buttery cracker mixture on top, promising that iconic crispy, golden crust you’ll love.
Step 7: Bake to bubbly perfection
Pop your casserole into a preheated 350°F oven and bake for 25 to 30 minutes. The sauce will bubble up invitingly and the Ritz cracker topping will turn into a perfectly crunchy, golden crown for your creamy masterpiece.
Step 8: Rest and serve
Remove from the oven and let the casserole sit for a few minutes. This rest time helps it set up nicely, making it easier to serve and maximizing those dreamy flavors in every bite.
How to Serve Creamy Chicken Noodle Casserole With Mushrooms, Cheddar, and Ritz Cracker Topping Recipe

Garnishes
A sprinkle of freshly chopped parsley or chives gives a fresh pop of color and brightness that cuts through the richness. You could also add a dusting of smoked paprika for a subtle smoky aroma that pairs perfectly with the cheddar.
Side Dishes
This casserole shines alongside crisp green salads with tangy vinaigrette or simple steamed veggies like broccoli or green beans. Light, acidic sides balance the richness and create a well-rounded meal.
Creative Ways to Present
For a fun twist, try serving the casserole in individual ramekins, giving each guest their own personal portion topped with Ritz crackers. Alternatively, scoop it into hollowed-out bread bowls for an eye-catching presentation that’s both rustic and cozy.
Make Ahead and Storage
Storing Leftovers
Leftover casserole can be cooled completely, then stored in an airtight container in the refrigerator for up to 3 days. The flavors meld beautifully overnight, so leftovers often taste even better.
Freezing
You can freeze the casserole before baking by assembling it in a freezer-safe dish, covering tightly with foil and plastic wrap. It will keep well for up to 2 months. Just thaw overnight in the fridge before baking as usual.
Reheating
Reheat individual portions in the microwave or the whole casserole in a 350°F oven until warmed through and bubbly again. Add a few extra crushed Ritz crackers on top and broil briefly for that fresh crunchy topping feeling.
FAQs
Can I use a different type of cheese in this casserole?
Absolutely! While the combination of American and sharp cheddar cheeses creates that classic creamy and tangy flavor, feel free to experiment with Monterey Jack, Gruyère, or even a little Parmesan for an extra kick.
Is it necessary to use Ritz crackers for the topping?
Ritz crackers give a perfect buttery crunch, but you can substitute with crushed buttery crackers, panko breadcrumbs tossed with melted butter, or even crushed cornflakes for a unique texture.
Can I make this recipe vegetarian?
To go vegetarian, omit the chicken and double up on mushrooms or add hearty vegetables like zucchini or bell peppers. Use vegetable broth instead of chicken broth for the sauce base.
How do I prevent the casserole from becoming soggy?
Be sure to drain your noodles well and allow the sauce to thicken before combining. Also, letting the casserole rest after baking helps it set, reducing sogginess. The cracker topping helps maintain a pleasant crunch.
Can I prepare this casserole ahead of time?
Yes! You can assemble the entire casserole up to a day before baking. Just cover it tightly and refrigerate. When ready, add the cracker topping and bake as directed.
Final Thoughts
This Creamy Chicken Noodle Casserole With Mushrooms, Cheddar, and Ritz Cracker Topping Recipe is a cozy, flavorful dish that feels like a warm hug on a plate. Whether you’re feeding a family or hosting friends, it comes together easily and always delivers that perfect balance of creamy, savory, and crunchy goodness. Give it a try—you’ll soon see why it becomes one of your go-to comfort meals that everyone will adore.
Print
Creamy Chicken Noodle Casserole With Mushrooms, Cheddar, and Ritz Cracker Topping Recipe
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 6 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
Description
This comforting Chicken Noodle Casserole features tender egg noodles mixed with sautéed vegetables, creamy cheese sauce, diced chicken, and peas, all topped with a buttery Ritz cracker crust and baked to golden perfection. Ideal for a hearty family dinner, this casserole combines classic flavors and creamy textures for a satisfying meal.
Ingredients
Pasta
- 12 ounces extra-wide egg noodles
- Salt and pepper, to taste
Vegetables & Aromatics
- 10 ounces mushrooms, cleaned and sliced
- 2 carrots, chopped
- 1 onion, chopped
Dairy & Fats
- 1 tablespoon olive oil
- 8 tablespoons unsalted butter, divided
- 3 cups whole milk
- 6 ounces American cheese, deli style, roughly chopped
- 6 ounces sharp cheddar cheese, shredded
Pantry
- 1/4 cup all-purpose flour
- 2 cups low-sodium or homemade chicken broth
- 1/4 teaspoon garlic powder
- 1 tablespoon Dijon mustard
Protein
- 4 cups cooked chicken, diced (about 4 medium chicken breasts or 1 rotisserie chicken)
Frozen
- 1 1/2 cups frozen peas
Topping
- 20 Ritz crackers, broken into small pieces
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C) to get it ready for baking the casserole later.
- Cook Noodles: Boil the extra-wide egg noodles following the package directions until al dente. Drain well, season with salt and pepper, and set aside.
- Sauté Vegetables: In a large skillet, heat olive oil and 4 tablespoons of butter over medium heat. Add mushrooms, chopped carrots, and onion. Sauté for 7-8 minutes until the vegetables soften and develop flavor.
- Add Flour: Sprinkle the flour over the sautéed vegetables and stir continuously for 1-2 minutes to form a roux that will thicken the sauce.
- Make Cheese Sauce: Gradually pour in the whole milk and chicken broth while stirring to prevent lumps. Bring the mixture to a simmer and cook for about 5 minutes until the sauce thickens.
- Add Cheese and Seasonings: Stir in the chopped American cheese, shredded sharp cheddar, garlic powder, and Dijon mustard. Keep stirring until all the cheese melts and the sauce is smooth and creamy.
- Combine Chicken and Peas: Add the diced cooked chicken and frozen peas to the cheese sauce. Stir until everything is evenly combined and heated through.
- Add Noodles: Fold the cooked egg noodles into the chicken and cheese mixture until well incorporated.
- Transfer to Baking Dish: Pour and spread the entire mixture evenly into a greased 9×13-inch baking dish.
- Prepare Topping: Melt the remaining 4 tablespoons of butter in a small bowl, then mix in the broken Ritz crackers to coat them in butter.
- Top and Bake: Sprinkle the buttered cracker mixture evenly over the casserole. Bake in the preheated oven for 25-30 minutes, until the casserole is bubbly and the topping is golden brown.
- Cool and Serve: Allow the casserole to cool for a few minutes before serving to let it set and make it easier to serve.
Notes
- You can substitute American cheese with another mild melting cheese if preferred.
- Using homemade chicken broth enhances the dish’s flavor but store-bought low-sodium broth works well too.
- Rotisserie chicken is a great shortcut to save time on cooking the chicken.
- If you want a crispier topping, broil the casserole for 2-3 minutes at the end of baking, watching carefully to prevent burning.
- For a gluten-free version, substitute all-purpose flour with a gluten-free flour blend and use gluten-free crackers for the topping.
- This casserole can be prepared a day ahead and refrigerated before baking.

