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Dinner · Part 2 of 3: Instructions

Creamy Broccoli, Chicken, and Rice Casserole Step-by-step instructions

A golden, bubbling chicken and broccoli casserole in a white ceramic dish with melted cheese pulls.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before beginning, ensure that your oven is fully preheated to 375°F (190°C). Prepare all ingredients by chopping the broccoli into uniform florets and cutting the chicken breasts into consistent bite-sized cubes.

If you have not already prepared the rice, cook it according to your preferred method and let it cool slightly so it does not overcook when combined with the other ingredients. Having all your components measured and ready to assemble will make the process smooth and efficient.

Ingredients at a glance (4)
  • 2 lbs chicken breasts, cut into bite-sized pieces
  • 4 cups broccoli florets, chopped
  • 2 cups white rice, cooked
  • 2 cups cheddar cheese, shredded

Instructions

Mixing the Casserole Base

  1. Prepare the Base
    Preheat the oven to 375°F (190°C). In a large mixing bowl, combine the cooked rice, raw bite-sized chicken pieces, and chopped broccoli florets. Ensure the ingredients are evenly distributed so that each serving gets a balanced mix of vegetables, protein, and grains.
    Look for The mixture should look uniform with the raw chicken pieces well-coated and dispersed among the rice and broccoli florets.
    Tip Ensure the chicken is cut into uniform pieces to promote even cooking throughout the baking process.

At the end of this phase, all ingredients should be thoroughly combined in the bowl. The raw chicken pieces should be well-coated with the rice and broccoli, ensuring they are evenly distributed.

Check that the broccoli florets are small enough to fit comfortably on a fork, as this ensures even cooking and a pleasant texture in every bite.

Assembling the Dish

  1. Add Cheese and Combine
    Fold half of the shredded cheddar cheese into the bowl. Toss the mixture gently until everything is thoroughly combined. Transfer the mixture into a 9x13 inch baking dish, spreading it out into an even layer.
    Look for The mixture should appear moist, with the cheese beginning to distribute throughout the rice and chicken.
    Tip Avoid over-mixing to keep the broccoli florets intact and prevent them from turning into mush before they enter the oven.

The mixture should look uniform once the cheese is folded in. Ensure that the mixture is spread into an even layer in the baking dish to promote consistent heat distribution. If the mixture appears too dry, ensure the chicken and broccoli are well-distributed to release their natural moisture throughout the baking process.

Baking and Serving

  1. Bake and Serve
    Top the casserole with the remaining cheddar cheese. Bake for 35 to 40 minutes, or until the chicken reaches an internal temperature of 165°F (74°C). The top should be golden brown and the cheese bubbling. Let the dish rest for 5 minutes before serving to allow the ingredients to set.
    Look for The casserole is done when the cheese is golden and bubbly, and the chicken is cooked through.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip If the cheese browns too quickly, cover the dish loosely with aluminum foil for the final 10 minutes of baking.

The casserole is ready when the cheese is beautifully golden and the surface is bubbling. The chicken must be cooked to 165°F (74°C). Check the texture of the broccoli; it should be tender yet retain its shape. Once finished, allow the dish to rest for 5 minutes before portioning into plates to ensure the layers hold together.

Common mistakes

Avoid cutting the chicken pieces too large, as this will prevent them from cooking through in the allotted time, leaving the center raw while the top burns.

Additionally, do not skip the resting period after removing the casserole from the oven; resting allows the ingredients to settle, making it much easier to scoop and serve. Be careful not to use too much heat, as high oven temperatures can cause the cheese to brown before the chicken is cooked through.

How to tell it’s done

The casserole is perfectly cooked when the cheese on top is golden brown and bubbling across the entire surface. To ensure the chicken is fully cooked, insert a meat thermometer into the thickest piece of chicken in the center of the dish.

It must reach an internal temperature of 165°F (74°C). The rice should be tender, and the cheese should have melted into a rich, cohesive consistency that binds the ingredients together.

  • 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 Casserole, Herb-Infused 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)