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Dinner · Part 2 of 3: Instructions

Creamy Chicken Noodle Casserole with Crispy Crouton Topping Step-by-step instructions

A steaming, cheesy chicken noodle casserole in a glass dish sitting on a wooden counter near a bright, sunny window.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before beginning the assembly, ensure the oven is preheated to 375°F (190°C) so it is ready for the baking phase.

Cook the egg noodles in a large pot of salted boiling water until they are just tender, being careful not to overcook them as they will soften further in the oven.

Shred the chicken into bite-sized pieces and make sure the sweet peas are fully thawed. Having all ingredients measured and ready to mix will make the assembly process efficient and straightforward.

Ingredients at a glance (6)
  • 12 oz egg noodles, cooked al dente
  • 2 cups shredded chicken, cooked
  • 1 cup frozen sweet peas, thawed
  • 2 cups shredded cheddar cheese, divided
  • 1 cup crispy toasted croutons
  • 2 cups creamy sauce, prepared

Instructions

Mixing the Base

  1. Prepare the Base
    In a large mixing bowl, combine the cooked egg noodles, shredded chicken, sweet peas, and the creamy sauce. Stir everything together thoroughly until the pasta and chicken are evenly coated in the sauce mixture.
    Look for The mixture should look uniform and well-coated.
    Tip Ensure the noodles are cooked al dente so they maintain texture during baking.

The mixture should be thoroughly combined with no dry noodles remaining. Every element should be evenly coated in the creamy sauce, and the consistency should be thick and cohesive before it is transferred to the baking dish.

Assembling the Layers

  1. Assemble the Casserole
    Transfer the pasta mixture into a 9x13 inch baking dish, spreading it out into an even layer. Sprinkle half of the shredded cheddar cheese over the top of the noodle mixture to ensure every serving gets cheesy goodness.
    Look for The surface is evenly covered with cheese.
    Tip Use a spatula to press the mixture gently into the corners of the dish.

The casserole should be spread into an even layer in the baking dish to ensure uniform cooking. The cheese and croutons should be distributed across the top in a single layer to facilitate even melting and crisping during the final bake.

Baking and Finishing

  1. Bake and Serve
    Add the remaining cheddar cheese and the crispy croutons on top. Place the dish in a preheated oven at 375°F (190°C) and bake until the cheese is melted and the croutons are golden brown, ensuring the chicken reaches 165°F (74°C). Remove from the oven and let it rest for 5 minutes before serving.
    Look for The cheese is bubbly and the croutons are golden brown.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip If the croutons brown too quickly, cover the dish loosely with aluminum foil.

The casserole is ready when the cheese is bubbling and the croutons have turned a deep golden brown. The center should be hot, and the entire dish should smell aromatic and savory, indicating it is ready to be removed from the oven.

Common mistakes

A common mistake is overcooking the noodles before they go into the oven, which results in a mushy texture after baking. Always aim for al dente, as the noodles will absorb moisture from the sauce while in the oven.

Another mistake is crowding the top with too many croutons, which can prevent the cheese from melting properly; keep the topping in a single layer to ensure everything cooks evenly and the croutons remain crispy rather than becoming soggy.

How to tell it’s done

The casserole is done when the cheese is completely melted, bubbling, and slightly browned on the edges. The internal temperature of the chicken must reach at least 165°F (74°C) to ensure it is thoroughly heated.

The sauce should be thick and creamy, not watery, and the croutons on top should be crispy to the touch. Letting the dish rest for five minutes allows the sauce to set slightly, making it easier to portion out into bowls for serving.

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

Coming up in Part 3: common questions

  • Can this casserole be made without chicken?
  • What is the best way to keep the croutons crunchy?
  • Can a different type of cheese be used?

Also in Part 3: variations (Spicy Chicken Casserole, Vegetable-Packed Casserole), 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)