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Dinner · Part 2 of 3: Instructions

Creamy Chicken Cordon Bleu Lasagna for Comfort Step-by-step instructions

A steaming, freshly baked chicken cordon bleu lasagna in a glass dish with a melted, bubbly Swiss cheese top.
Prep
Cook
Total
Serves
8
Includes 10 min resting

Before you start

Before beginning, ensure all ingredients are measured and ready for assembly. Shred the chicken into bite-sized pieces and ensure the ham is sliced thin enough to layer easily. If using oven-ready noodles, confirm they are compatible with the amount of liquid in your sauce.

Preheat the oven to the specified temperature and position a rack in the center to ensure even heat circulation, which is vital for achieving a perfectly bubbly and golden top layer without burning the edges of the pasta.

Ingredients at a glance (6)
  • 2 lbs cooked chicken breast, shredded
  • 1 lb deli ham, sliced
  • 16 oz Swiss cheese, shredded
  • 1 box lasagna noodles
  • 2 cups heavy cream
  • 1/4 cup Dijon mustard

Instructions

Sauce Preparation

  1. Prepare the Sauce and Oven
    Preheat the oven to 375°F (190°C). In a medium bowl, whisk together the heavy cream and Dijon mustard until smooth. This sauce will provide the moisture needed for the noodles to cook properly during the baking process, ensuring a tender texture throughout the lasagna layers. Keep the mixture nearby for assembly, ensuring the ingredients are well-incorporated to maintain a consistent flavor across every serving of the finished dish.
    Look for The sauce should be uniform and smooth.
    Tip Whisking the mustard into the cold cream helps prevent clumping.

The Dijon cream sauce should be thin enough to pour easily but thick enough to coat the back of a spoon. Whisking ensures no lumps of mustard remain, creating a uniform, tangy base that will permeate the pasta layers during the baking process. If the sauce appears too thick, add a small amount of milk or broth to reach the desired consistency before beginning the assembly phase.

Layering the Lasagna

  1. Assemble the Layers
    Spread a small amount of the Dijon cream sauce on the bottom of a 9x13 inch baking dish. Place a layer of lasagna noodles over the sauce. Add a portion of the shredded chicken, slices of ham, and a generous sprinkle of Swiss cheese. Pour a ladle of the cream sauce over the top. Repeat these layers until all ingredients are used, finishing with a final layer of Swiss cheese on top to achieve that signature golden, bubbly crust.
    Look for The dish should be filled to the rim.
    Tip Ensure the edges of the noodles are covered with sauce to prevent them from drying out.

Each layer should be distributed evenly across the dish to ensure consistency in every bite. Check that the noodles are completely covered by the cream sauce, especially at the corners, to prevent them from drying out in the oven.

The final layer of Swiss cheese should cover the entire surface, creating a protective barrier that will melt into a golden, bubbly crust during the final stage of baking.

Baking and Resting

  1. Bake and Serve
    Cover the baking dish with aluminum foil and bake for 30 minutes. Remove the foil and bake for an additional 15 minutes, or until the top is bubbling and golden brown. Ensure the chicken reaches an internal temperature of 165°F (74°C). Let the lasagna rest for 10 minutes before slicing to allow the layers to set properly, making it easier to serve clean, beautiful portions with perfect cheese pulls.
    Look for The top is golden and bubbling.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip Letting it rest is crucial for clean slices.

The lasagna should be bubbling vigorously when it comes out of the oven. If the top is browning too quickly, tent it with foil. After removing from the oven, ensure the dish is placed on a heat-safe surface. The resting period is non-negotiable; it allows the internal temperature to equalize and the sauce to thicken, ensuring the dish is easy to slice and serve without falling apart on the plate.

Common mistakes

A common mistake is using too little sauce, which leads to dry, brittle noodles. Ensure every layer is adequately moistened by the cream mixture. Another error is failing to let the lasagna rest, which results in the layers sliding apart when serving.

Patience is key here; the resting period allows the sauce and cheese to stabilize, ensuring that every slice you lift from the pan maintains its structure and looks as beautiful as it tastes.

How to tell it’s done

The lasagna is finished when the top is uniformly golden and bubbling. Use a digital thermometer to check the center, ensuring the chicken has reached an internal temperature of 165°F (74°C).

The noodles should be tender when pierced with a knife, and the cream sauce should have thickened into a rich, velvety consistency that holds the layers together without being watery. Always allow the dish to rest for at least 10 minutes before serving to ensure the layers set properly.

  • Poultry: 165°F (74°C) in the thickest part

Coming up in Part 3: common questions

  • Can this lasagna be made ahead of time?
  • Why is the sauce splitting?
  • Can the Swiss cheese be substituted?

Also in Part 3: variations (Spinach Cordon Bleu, Mushroom Infusion), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)