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Dinner · Part 2 of 3: Instructions

Creamy Cheesy Chicken and Broccoli Casserole Step-by-step instructions

A steaming, creamy chicken and broccoli casserole in a white baking dish topped with melted golden cheddar cheese.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before beginning, ensure all ingredients are properly prepared. Cut the chicken breast into uniform one-inch cubes and wash the broccoli, breaking it into small, manageable florets.

Preheat the oven to 375°F (190°C) and ensure the baking dish is clean and ready. Having all ingredients measured and ready to assemble makes the process smooth and efficient, allowing for a stress-free cooking experience from start to finish.

Ingredients at a glance (4)
  • 2 lb chicken breast, cut into bite-sized pieces
  • 4 cups broccoli florets
  • 2 cups cheddar cheese, shredded
  • fresh parsley, for serving

Instructions

Assembly of Ingredients

  1. Prepare the Chicken and Broccoli
    Preheat the oven to 375°F (190°C). In a large mixing bowl, combine the bite-sized chicken pieces and the broccoli florets. Ensure the chicken and broccoli are evenly distributed before transferring the mixture into a 9x13 inch baking dish.
    Look for The chicken pieces should be cut into uniform sizes to ensure they cook at the same rate.
    Tip Cut the broccoli into small, bite-sized florets so they become tender without turning mushy during the bake.

At the end of this phase, the chicken and broccoli should be evenly mixed and distributed throughout the baking dish. The surface should look uniform, with the broccoli florets nestled among the chicken pieces.

Ensure there is enough space in the dish so that the ingredients are not piled too high, which will help ensure the heat reaches every corner during the baking process.

Baking the Base

  1. Bake the Casserole
    Place the baking dish in the preheated oven and bake for 30 minutes. Monitor the chicken to ensure it reaches a safe internal temperature of 165°F (74°C).
    Look for The chicken should be opaque and fully cooked through.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip Ensure the chicken is spread in a single layer for even cooking.

Once the timer for the initial bake finishes, the chicken should be opaque and fully cooked. The broccoli should be tender but still hold its shape. Check the internal temperature of the chicken to confirm it has reached 165°F (74°C) before proceeding to the final stage of adding the cheese. The dish should look fragrant and ready for the topping.

Melting the Topping

  1. Add Cheese and Finish
    Remove the baking dish from the oven and sprinkle the shredded cheddar cheese evenly over the top. Return the dish to the oven for an additional 5 minutes or until the cheese is melted, bubbly, and golden. Garnish with fresh parsley before serving.
    Look for The cheese should be completely melted and show a slight golden color on the surface.
    Tip Use freshly shredded cheese for the best melt and the most impressive cheese pull when serving.

In this final phase, the cheese should be fully melted and bubbling across the entire surface of the casserole. The edges might show a slight golden brown hue, indicating the cheese is perfectly toasted.

Once the desired color and texture are achieved, remove the dish from the oven, garnish with fresh parsley, and prepare to serve the hot, steaming casserole immediately.

Common mistakes

Avoid overcrowding the baking dish, as this prevents the heat from circulating evenly, which can result in unevenly cooked chicken. Do not skip the resting period, as the ingredients need a few minutes to settle before serving.

Additionally, avoid using pre-shredded cheese, as it often contains anti-caking agents that prevent it from melting into that smooth, creamy consistency desired for a perfect casserole.

How to tell it’s done

The casserole is considered done when the chicken has reached an internal temperature of 165°F (74°C) as measured by a meat thermometer inserted into the thickest piece. The cheese topping should be fully melted, golden brown, and pulling away from the edges of the dish. Allow the casserole to rest for five minutes after removing it from the oven to let the dish settle.

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

Coming up in Part 3: common questions

  • Can this casserole be made ahead of time?
  • What is the best way to reheat leftovers?
  • Can frozen broccoli be used instead of fresh?

Also in Part 3: variations (Spicy Chicken Broccoli, Garlic Herb 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)