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Dinner · Part 2 of 3: Instructions

Easy Cheesy Southwest Chicken Casserole with Rice and Beans Step-by-step instructions

A serving of Southwest chicken casserole on a white plate, showing melted cheddar cheese, rice, beans, and corn.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before you begin assembling the casserole, ensure that all your ingredients are properly measured and prepped. Shred the pre-cooked chicken into bite-sized pieces and drain and rinse the black beans thoroughly to prevent excess starch from discoloring the dish.

Cook the rice beforehand and let it cool slightly so it does not become mushy when mixed. Grate the cheddar cheese fresh from the block for the ultimate melt, and slice the scallions into thin rounds, keeping the white and green parts for garnish.

Ingredients at a glance (7)
  • 3 cups shredded cooked chicken
  • 2 cups cooked white rice
  • 1 can (15 oz) black beans, drained and rinsed
  • 1 cup sweet corn, canned or frozen
  • 1 tbsp Southwest seasoning
  • 2 cups shredded cheddar cheese, divided
  • 1/4 cup sliced scallions, for garnish

Instructions

Combining the Base Ingredients

  1. Mix the Base Ingredients
    Preheat the oven to 375°F (190°C). In a large mixing bowl, combine 3 cups of shredded cooked chicken, 2 cups of cooked white rice, 1 can of drained black beans, 1 cup of sweet corn, and 1 tablespoon of Southwest seasoning. Stir the ingredients thoroughly to distribute the spices evenly.
    Look for The mixture should look uniform with the spices evenly coating the chicken and rice.
    Tip Ensure the black beans are fully drained so they do not add excess liquid to the base.
  2. Incorporate the Cheese
    Add 1 cup of the shredded cheddar cheese to the chicken and rice mixture. Toss gently to incorporate the cheese throughout the filling, which will help bind the casserole together as it bakes.
    Look for The cheese should be scattered evenly throughout the seasoned mixture.
    Tip Grate the cheese fresh from the block for the best melting texture.

At the end of this mixing phase, the shredded chicken, fluffy rice, black beans, and sweet corn should be evenly distributed throughout the bowl.

The Southwest seasoning should coat every ingredient, giving the mixture a uniform golden-brown hue and a warm, aromatic scent of cumin and chili powder. The cheese mixed into the base should be scattered evenly, ready to bind the ingredients together.

Assembling and Layering

  1. Assemble the Casserole
    Transfer the seasoned chicken and rice mixture into a 9x13-inch white baking dish. Use a spatula to spread the mixture into an even layer, pressing down gently to compact it slightly.
    Look for The filling should form a flat, even layer across the bottom of the dish.
    Tip A white ceramic baking dish retains heat beautifully and makes for an elegant presentation.
  2. Add the Cheese Topping
    Sprinkle the remaining 1 cup of shredded cheddar cheese evenly over the top of the casserole, ensuring it covers the chicken and rice mixture completely to prevent the edges from drying out during baking.
    Look for The top of the casserole should be completely blanketed in shredded cheese.
    Tip Make sure to spread the cheese all the way to the edges of the dish.

Once assembled in the baking dish, the casserole should present a perfectly flat, even surface. The shredded cheddar cheese must form a complete, uniform blanket over the rice and chicken mixture, with no filling peaking through. This ensures even melting and protects the chicken underneath from drying out in the oven's dry heat.

Baking and Garnishing

  1. Bake to Golden Perfection
    Place the baking dish in the preheated oven and bake for 20 to 25 minutes. The cheese must be fully melted, golden brown, and bubbling at the edges. Ensure the seasoned chicken is heated through to a safe internal temperature of 165°F (74°C) before removing the casserole from the oven.
    Look for The cheese topping should be bubbling vigorously and turning golden brown.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip If you prefer a darker crust, broil the casserole for the last 2 minutes of baking.
  2. Garnish and Serve
    Remove the hot casserole from the oven and let it rest for 5 minutes. Sprinkle 1/4 cup of sliced scallions over the melted cheese layer just before serving to add a fresh, mild onion flavor.
    Look for The green scallions should stand out beautifully against the melted yellow cheese.
    Tip Letting the casserole rest helps the portions hold their shape when scooped.

After baking, the casserole will emerge from the oven with a stunning, golden-brown cheese crust that bubbles vigorously around the edges of the white dish. Hot steam will rise from the center, carrying the rich aroma of melted cheese and savory spices. The sliced scallions added at the very end will provide a bright green contrast against the warm orange of the melted cheddar.

Common mistakes

One of the most common mistakes is using rice that is too wet or freshly boiled and hot, which can release excess steam and turn the casserole soggy. Always use cooled, cooked rice that has dried out slightly.

Another error is failing to cover the casserole with enough cheese, leaving the shredded chicken exposed to the direct heat of the oven, which can dry out the poultry. Finally, avoid using pre-shredded cheese, as it does not melt into that signature stretchy cheese pull seen in the video.

How to tell it’s done

The casserole is perfectly cooked when the cheddar cheese on top is fully melted, slightly browned, and bubbling actively at the edges. Since the chicken used in this recipe is pre-cooked, the primary goal of baking is to heat all the ingredients through.

To guarantee food safety, insert a meat thermometer into the center of the casserole to verify that the poultry has reached a safe internal temperature of 165°F (74°C).

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

Coming up in Part 3: common questions

  • Can brown rice be used instead of white rice?
  • How can dry chicken be avoided in this casserole?
  • Can this casserole be frozen before baking?

Also in Part 3: variations (Spicy Pepper Jack, Brown Rice and Quinoa), 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)