Chicken Cordon Bleu Casserole: Quick and Easy Recipe

Name: Chicken Cordon Bleu Casserole
Prep time: PT-493077H34M10S
Cook time: PT-493077H29M10S
Total time: 45 min
Cuisine: American
Ingredients: – 5 1/2 cups shredded rotisserie chicken for main protein; – 2 cups cubed ham for classic chicken cordon bleu flavor; – 4 tablespoons butter for sauce base; – 1/4 cup all-purpose flour for thickening cheese sauce; – 2 cups milk for sauce; – 1 tablespoon Dijon mustard for tangy flavor; – 1 tablespoon lemon juice for brightening sauce; – 1/2 teaspoon garlic powder for savory depth; – 1/4 teaspoon salt for flavor; – 1 1/4 cups shredded Swiss cheese for sharp nutty flavor; – 1/4 cup grated Parmesan cheese for richness; – 1 cup Panko bread crumbs for crunchy topping; – 2 tablespoons melted butter for golden topping

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Why You’ll Love This Chicken Cordon Bleu Casserole

Chicken Cordon Bleu Casserole is one of those cozy, family-friendly meals that feels fancy enough for a weekend dinner but simple enough for a busy weeknight. If you love chicken cordon bleu but do not want the hassle of breading, rolling, and frying, this easy chicken cordon bleu casserole recipe is your new best friend. It gives you all the classic flavors in a creamy baked chicken cordon bleu casserole that comes together fast.

Quick and easy: This chicken casserole uses rotisserie chicken, so most of the work is already done. With about 5 minutes of prep and a short bake time, it is a great casserole recipe for busy parents, students, and working professionals.
Comforting and filling: The mix of shredded chicken, cubed ham, and creamy cheese sauce makes every bite hearty. It is a satisfying cordon bleu casserole that works well for lunch or dinner.

Flexible for your kitchen: You can serve it as is, or stretch it over pasta or rice. That makes it handy for larger families, meal prep, or anyone trying to make dinner go a little farther.
Classic flavor with a crispy finish: Swiss cheese, Dijon mustard, lemon juice, and a buttery Panko topping give this cheesy chicken cordon bleu casserole the rich, savory taste people expect from chicken cordon bleu.

Tip: If you already have leftover chicken in the fridge, this is a smart way to turn it into something that feels fresh and special.

For another easy comfort food idea, you might also like this Ritz Cracker Chicken Casserole from my kitchen. If you want to compare classic flavors, the original chicken cordon bleu recipe is a great reference too.

Jump To

1. Why You’ll Love This Chicken Cordon Bleu Casserole
2. Essential Ingredients for Chicken Cordon Bleu Casserole
3. How to Prepare the Perfect Chicken Cordon Bleu Casserole: Step-by-Step Guide
4. Dietary Substitutions to Customize Your Chicken Cordon Bleu Casserole
5. Mastering Chicken Cordon Bleu Casserole: Advanced Tips and Variations

6. How to Store Chicken Cordon Bleu Casserole: Best Practices
7. FAQs: Frequently Asked Questions About Chicken Cordon Bleu Casserole
8. Chicken Cordon Bleu Casserole

Essential Ingredients for Chicken Cordon Bleu Casserole

This chicken cordon bleu casserole recipe keeps the ingredient list practical, but every item has a job to do. The chicken and ham bring the savory base, the sauce ties everything together, and the Panko topping adds that golden crunch. Below is the full list with exact measurements so you can get started without guessing.

Main Ingredients

5 1/2 cups shredded rotisserie chicken – The main protein. Leftover cooked chicken also works well and saves time.
2 cups cubed ham – Gives the casserole its classic chicken cordon bleu flavor. Diced ham from a ham steak or leftover ham is ideal.
4 tablespoons butter – Used to make the sauce base rich and smooth.

1/4 cup all-purpose flour – Thickens the cheese sauce into a creamy roux.
2 cups milk – At least 2% fat is recommended so the sauce stays smooth and does not curdle.
1 tablespoon Dijon mustard – Adds the familiar tangy flavor that makes cordon bleu casserole stand out.

1 tablespoon lemon juice – Brightens the sauce and balances the richness.
1/2 teaspoon garlic powder – Adds a little savory depth without overpowering the dish.
1/4 teaspoon salt – Brings out the flavor in the sauce. Adjust to taste.

1 1/4 cups shredded Swiss cheese – About 5 ounces. This gives the sauce its classic sharp, nutty flavor.
1/4 cup grated Parmesan cheese – Adds extra richness and a salty finish.
1 cup Panko bread crumbs – Creates the crunchy topping.

2 tablespoons melted butter – Helps the topping turn golden brown in the oven.

Special Dietary Options

Vegan: Use plant-based chicken, vegan ham-style slices, dairy-free butter, unsweetened oat or soy milk, vegan Swiss-style shreds, and vegan Parmesan.
Gluten-free: Swap the flour for cornstarch or xanthan gum, and use gluten-free bread crumbs instead of regular Panko.

Low-calorie: Use reduced-fat cheese, lean ham, and a lighter milk option that is still at least 2% fat. You can also serve smaller portions over steamed vegetables instead of pasta.

Ingredient	Amount	Purpose
Shredded chicken	5 1/2 cups	Base protein
Cubed ham	2 cups	Classic cordon bleu flavor
Swiss cheese	1 1/4 cups	Sharp, creamy sauce
Panko bread crumbs	1 cup	Crispy topping

If you enjoy creamy casseroles, you may also want to try this Chicken Spinach and Mushroom Bake for another easy dinner idea.

How to Prepare the Perfect Chicken Cordon Bleu Casserole: Step-by-Step Guide

Making this chicken cordon bleu casserole recipe is very straightforward. You do not need special skills, just a saucepan, a casserole dish, and a little patience while the sauce thickens. The whole process takes about 45 minutes, which makes it a great option when you need dinner on the table without a lot of fuss.

First Step: Prep the Oven and Dish

Preheat the oven to 350 degrees Fahrenheit. Spray a 9×13 casserole dish with cooking spray so the casserole does not stick. This small step makes serving much easier later.

Second Step: Build the Base Layers

Spread 5 1/2 cups of shredded rotisserie chicken evenly across the bottom of the casserole dish. Then layer 2 cups of cubed ham over the chicken. Try to keep the layers even so every serving gets a little bit of both. If you are using leftover chicken, this is a great way to turn it into a fresh meal without extra work.

Third Step: Make the Cheese Sauce

Set a saucepan over medium heat and melt 4 tablespoons butter. Sprinkle in 1/4 cup all-purpose flour and cook for 1 to 2 minutes. The mixture should look dry and clumpy. This is normal and helps the sauce thicken properly.

Slowly whisk in 2 cups milk. Keep whisking while you add 1 tablespoon Dijon mustard, 1 tablespoon lemon juice, 1/2 teaspoon garlic powder, and 1/4 teaspoon salt. Let the sauce simmer for 3 to 5 minutes, stirring constantly, until it thickens.

Fourth Step: Finish the Sauce

Take the pan off the heat. Stir in 1 1/4 cups shredded Swiss cheese and 1/4 cup grated Parmesan cheese until smooth and melted. Taste the sauce and add a little more salt if needed. If you want a richer and saucier baked chicken cordon bleu casserole, you can make a little extra sauce at this stage.

Keep the milk at 2% fat or higher. Lower-fat milk can curdle more easily when combined with mustard and lemon juice.

Fifth Step: Assemble the Casserole

Pour the cheese sauce evenly over the chicken and ham in the baking dish. Try to cover the full surface so the casserole bakes evenly and stays creamy in every bite. If you want to add cooked rice or noodles at the bottom, this is the point where you can do that for a heartier meal.

Sixth Step: Add the Panko Topping

In a small bowl, mix 1 cup Panko bread crumbs with 2 tablespoons melted butter. Sprinkle the mixture evenly over the top of the casserole. For a more flavorful topping, you can also mix in a little grated Parmesan cheese or a pinch of paprika.

Seventh Step: Bake Until Bubbly

Bake uncovered for 30 to 35 minutes, or until the top is golden brown and the casserole is bubbly around the edges. The smell alone will probably bring everyone into the kitchen early, so be ready.

Final Step: Rest and Serve

Let the casserole cool for 5 to 10 minutes before serving. This helps the sauce set slightly, so your portions hold together better. Serve it as a full meal or spoon it over pasta or rice to stretch servings for a larger crowd.

For another comforting baked dinner, take a look at this Loaded Baked Potato Chicken Casserole.

Dietary Substitutions to Customize Your Chicken Cordon Bleu Casserole

Protein and Main Component Alternatives

If you do not have rotisserie chicken, any leftover cooked chicken works well in this chicken casserole. Shredded baked chicken, poached chicken, or even grilled chicken can all fit into the recipe. If ham is not your thing, try turkey ham or diced cooked turkey for a lighter twist.

For a lower-carb version, skip rice or noodles underneath the casserole and keep the focus on the protein and sauce. If you need to feed a crowd, adding a layer of cooked pasta or rice is a simple way to make the dish go farther without changing the flavor too much.

Vegetable, Sauce, and Seasoning Modifications

Frozen broccoli is a nice add-in if you want some vegetables in the mix. You can layer it between the chicken and ham or stir it into the casserole before baking. Mushrooms, peas, or spinach can also work if you want to add more color and texture.

Swiss cheese gives this cordon bleu casserole its classic flavor, but mozzarella, provolone, or cheddar are all good substitutes. If you need a flour-free sauce, cornstarch or xanthan gum can thicken it instead. Just whisk carefully so the sauce stays smooth. You can also add paprika, black pepper, or a little extra garlic powder if you want a stronger savory taste.

Mastering Chicken Cordon Bleu Casserole: Advanced Tips and Variations

A few small tricks can make your chicken cordon bleu casserole recipe even better. These ideas are especially helpful if you are cooking for guests, planning ahead, or just want the kind of casserole that disappears fast at the table.

Pro Cooking Techniques

Dry the chicken and ham a bit before layering if they seem wet. Too much moisture can make the casserole watery. Also, cook the roux long enough before adding milk so the sauce thickens well. If you want an extra creamy chicken cordon bleu casserole, double the sauce ingredients and use the extra on the side for pasta.

Flavor Variations

Mix grated Parmesan into the Panko topping for a sharper finish. Paprika adds a nice color and a little warmth. If you want a different cheese profile, try provolone for a milder taste or cheddar for a bolder one. These small swaps let you keep the spirit of chicken cordon bleu while changing the flavor just enough to keep it interesting.

Presentation Tips

Let the casserole rest before cutting so the layers stay neat. A sprinkle of fresh parsley can add color if you have it on hand. Serve it in wide portions with a simple salad or steamed vegetables on the side for a balanced meal.

Make-Ahead Options

You can assemble the casserole a day ahead, but keep the Panko topping separate until baking time. If freezing, do not freeze the topping. Wrap the assembled casserole tightly, thaw it overnight in the fridge, then add the topping and bake until hot and bubbly. This makes it a smart meal prep option for busy weeks.

How to Store Chicken Cordon Bleu Casserole: Best Practices

Chicken Cordon Bleu Casserole stores well, which makes leftovers a big win. Once it has cooled, move any remaining portions into an airtight container and refrigerate them for up to 3 days. If you want to keep it longer, freezing is a good option.

For freezing, assemble the casserole without the Panko topping, wrap it tightly, and freeze for up to 3 months. Thaw it overnight in the fridge before baking. Add the topping just before it goes into the oven so it stays crisp instead of soggy.

To reheat, cover the casserole and warm it in a 325 degrees Fahrenheit oven until heated through. You can also microwave individual portions, though the topping will be softer. If you are meal prepping, divide the casserole into containers with rice or vegetables for quick lunches during the week.

Best storage tip: Keep the crunchy topping separate whenever possible. That one move makes leftovers taste much closer to freshly baked casserole.

FAQs: Frequently Asked Questions About Chicken Cordon Bleu Casserole

What ingredients go into chicken cordon bleu casserole?

Chicken cordon bleu casserole typically includes cooked chicken (like rotisserie or leftovers), diced ham, Swiss cheese, Dijon mustard, and a creamy cheese sauce made from butter, flour, milk, Parmesan, lemon juice, garlic powder, and salt. The topping uses Panko breadcrumbs mixed with melted butter for crunch. This dish serves 6-8 people and takes about 45 minutes total. For a full list: 4 cups shredded chicken, 1 cup diced ham, 2 cups Swiss cheese (shredded), 1/4 cup Dijon mustard, 4 tbsp butter, 4 tbsp flour, 2 cups 2% milk, 1/2 cup Parmesan, 1 tbsp lemon juice, 1 tsp garlic powder, 1 tsp salt, 1 cup Panko, and 3 tbsp butter for topping. Prep chicken and ham first, layer in a 9×13 dish, pour sauce over, then add topping before baking at 350°F for 25-30 minutes until golden.

Can I use leftover chicken for chicken cordon bleu casserole?

Yes, leftover chicken works perfectly in chicken cordon bleu casserole and saves time. Use about 4 cups of shredded or chopped cooked chicken from rotisserie, grilled, or baked sources—avoid raw chicken to prevent uneven cooking. Dice 1 cup of ham and mix with 2 cups shredded Swiss cheese and 1/4 cup Dijon mustard. Prepare the cheese sauce by melting 4 tbsp butter, whisking in 4 tbsp flour, then slowly adding 2 cups 2% milk, plus seasonings, until thickened. Layer everything in a greased 9×13 baking dish, top with buttered Panko, and bake at 350°F for 25-30 minutes. This method cuts prep to 15 minutes and keeps the dish juicy. Store leftovers in the fridge for up to 3 days.

How do you make the cheese sauce for chicken cordon bleu casserole?

To make the cheese sauce, melt 4 tbsp butter in a saucepan over medium heat. Stir in 4 tbsp flour and cook for 1-2 minutes until it turns dry and bubbly (this is the roux). Slowly whisk in 2 cups 2% milk to avoid lumps, then add 1/4 cup Dijon mustard, 1 tbsp lemon juice, 1 tsp garlic powder, and 1 tsp salt. Simmer for 5-7 minutes, stirring constantly until thickened. Remove from heat and stir in 1 cup shredded Swiss cheese and 1/2 cup Parmesan until melted and smooth. Pour over layered chicken, ham, and cheese in your casserole dish. Use 2% or whole milk to prevent curdling from the lemon juice. This sauce takes 10 minutes and binds the dish perfectly—double it for extra creaminess.

Can you make chicken cordon bleu casserole ahead or freeze it?

Yes, assemble chicken cordon bleu casserole up to 24 hours ahead: layer chicken, ham, cheese, and sauce in the dish, cover, and refrigerate. Add the Panko topping just before baking at 350°F for 25-30 minutes. For freezing, prepare without the Panko topping, wrap tightly in plastic and foil, and freeze for up to 3 months. Thaw overnight in the fridge, add topping, and bake at 350°F for 30-35 minutes until bubbly and golden (internal temp 165°F). Reheat leftovers covered at 325°F for 15-20 minutes. This flexibility makes it ideal for meal prep—freezing preserves texture better than refrigerating long-term. Label with date for easy tracking.

Why is there water pooling in my chicken cordon bleu casserole and how do I fix it?

Water pooling often comes from excess moisture in the chicken or using skim milk, which doesn’t emulsify well with lemon juice or mustard. Pat chicken and ham dry before layering, and use at least 2% milk (or half-and-half) for better thickening. Ensure your roux cooks fully before adding liquids, and bake uncovered after the first 10 minutes to evaporate moisture. If it happens, drain excess liquid midway and continue baking. For prevention, chill assembled casserole 30 minutes before topping and baking at 350°F. This keeps the dish creamy, not soupy. Substitutes like cornstarch (1 tbsp per 2 cups milk) work for low-carb versions but whisk thoroughly. Results in a crisp-topped, sliceable casserole every time.

Chicken Cordon Bleu Casserole Easy Recipe