King Ranch Chicken Casserole Recipe

A creamy, cheesy Tex-Mex casserole layered with tender chicken, corn tortillas, and a robust blend of peppers, tomatoes, and spices that creates the perfect comfort food experience.
Difficulty:
Beginner
Prep Time:
25 mins
Cook Time:
45 mins
Serves:
1 casserole (8 servings)
An overhead shot of the King Ranch Chicken Casserole fresh from the oven, showcasing its golden brown, bubbling cheese top with flecks of green cilantro. A large spoon lifts a generous portion, revealing the savory layers of tortillas, shredded chicken, and creamy sauce. The cross-section exposes the distinct stratification of ingredients, with vibrant red tomatoes and green peppers adding color contrast. Captured in warm, natural light that accentuates the steam rising from the dish, the casserole sits on a rustic wooden table alongside a scatter of fresh jalapeños and lime wedges. A terra cotta serving dish holds the casserole, emphasizing its Southwestern roots and homestyle appeal.

Ingredients

<ul class="ingredients-main-list"> <li class="ingredients-single-item">750g boneless, skinless chicken breasts</li> <li class="ingredients-single-item">1 tbsp vegetable oil</li> <li class="ingredients-single-item">1 large onion, diced</li> <li class="ingredients-single-item">1 red bell pepper, diced</li> <li class="ingredients-single-item">1 green bell pepper, diced</li> <li class="ingredients-single-item">3 cloves garlic, minced</li> <li class="ingredients-single-item">2 tbsp tomato paste</li> <li class="ingredients-single-item">1 can (400g) diced tomatoes</li> <li class="ingredients-single-item">1 can (115g) diced green chilies</li> <li class="ingredients-single-item">2 tsp ground cumin</li> <li class="ingredients-single-item">2 tsp chili powder</li> <li class="ingredients-single-item">1 tsp dried oregano</li> <li class="ingredients-single-item">300ml chicken broth</li> <li class="ingredients-single-item">200ml sour cream</li> <li class="ingredients-single-item">200g cream cheese, softened</li> <li class="ingredients-single-item">12 corn tortillas (15cm), halved</li> <li class="ingredients-single-item">300g grated cheddar cheese</li> <li class="ingredients-single-item">100g Monterey Jack cheese, grated</li> <li class="ingredients-single-item">Fresh cilantro for garnishing</li> </ul>

Equipment

<ul class="equipment-main-list"> <li class="equipment-single-item">33 x 23 cm (9 x 13 inch) baking dish</li> <li class="equipment-single-item">Large skillet</li> <li class="equipment-single-item">Aluminum foil</li> </ul>
BAKE SMARTER

Kitchen Converter

Quickly switch between common baking units without leaving the recipe.

Convert
Result—

Volume uses US cups, tablespoons, and teaspoons. Converting weight to volume depends on the ingredient.

Directions

<ol class="no-list-style"> <li class="MethodStepper"> <h4 class="step-title">Step 1</h4> Preheat your oven to 180°C. Lightly grease a 33 x 23 cm (9 x 13 inch) baking dish with cooking spray or butter. This preparation ensures your casserole won't stick and will release easily when serving. </li> <li class="MethodStepper"> <h4 class="step-title">Step 2</h4> Place chicken breasts in a large pot and cover with cold water. Bring to a gentle boil over medium-high heat, then reduce to a simmer and cook for about 15-20 minutes until the chicken is completely cooked through (internal temperature of 74°C). This poaching method keeps the chicken moist and tender, perfect for shredding. </li> <li class="MethodStepper"> <h4 class="step-title">Step 3</h4> Remove the chicken from the water and allow it to cool slightly before shredding with two forks. The chicken should pull apart easily - if it's difficult to shred, it may need a few more minutes of cooking time. Set the shredded chicken aside. </li> <li class="MethodStepper"> <h4 class="step-title">Step 4</h4> In a large skillet, heat the vegetable oil over medium heat. Add the diced onion and bell peppers, cooking until softened, about 5-6 minutes. The vegetables should become translucent but not browned - this initial sautéing releases their flavors into the dish. </li> <li class="MethodStepper"> <h4 class="step-title">Step 5</h4> Add the minced garlic and cook for another 30 seconds until fragrant. Garlic burns easily, so adding it after the other vegetables helps protect its flavor while still allowing it to infuse the dish. </li> <li class="MethodStepper"> <h4 class="step-title">Step 6</h4> Stir in the tomato paste and cook for 1 minute, allowing it to slightly caramelize. This step helps develop a deeper, richer tomato flavor that forms the base of your sauce. </li> <li class="MethodStepper"> <h4 class="step-title">Step 7</h4> Add the diced tomatoes, green chilies, cumin, chili powder, and dried oregano. Stir well to combine, and let simmer for 3-4 minutes to allow the flavors to meld together. These aromatic spices are essential for building the signature Tex-Mex flavor profile. </li> <li class="MethodStepper"> <h4 class="step-title">Step 8</h4> Pour in the chicken broth, bring to a simmer, and cook for 5 minutes until slightly reduced. The liquid will concentrate as it reduces, intensifying the flavors in your sauce. </li> <li class="MethodStepper"> <h4 class="step-title">Step 9</h4> Reduce heat to low and stir in the sour cream and softened cream cheese until completely incorporated and smooth. The sauce should now be creamy with no lumps - be careful not to let it boil once the dairy is added, as this can cause separation. </li> <li class="MethodStepper"> <h4 class="step-title">Step 10</h4> Add about ¾ of the shredded chicken to the sauce mixture, reserving the rest for the topping. Mix well to coat the chicken with the creamy sauce. </li> <li class="MethodStepper"> <h4 class="step-title">Step 11</h4> Begin assembling your casserole by arranging a layer of halved corn tortillas on the bottom of your greased baking dish, slightly overlapping them. The tortillas act as the structure of your casserole, absorbing some sauce while maintaining their texture. </li> <li class="MethodStepper"> <h4 class="step-title">Step 12</h4> Spread half of the chicken and sauce mixture over the tortillas, then sprinkle with about ⅓ of the combined cheeses. The cheese between layers not only adds flavor but also helps bind the casserole together as it melts. </li> <li class="MethodStepper"> <h4 class="step-title">Step 13</h4> Add another layer of halved tortillas, followed by the remaining chicken mixture and another third of the cheese. Top with a final layer of tortillas. </li> <li class="MethodStepper"> <h4 class="step-title">Step 14</h4> Sprinkle the remaining shredded chicken over the top layer of tortillas, then finish with the remaining cheese. This final cheese layer will create a beautifully golden, bubbly top that's the hallmark of a perfect casserole. </li> <li class="MethodStepper"> <h4 class="step-title">Step 15</h4> Cover the baking dish with aluminum foil, making sure it's not touching the cheese. The foil will trap steam, helping the ingredients meld together while preventing the top from burning. </li> <li class="MethodStepper"> <h4 class="step-title">Step 16</h4> Bake covered for 30 minutes, then remove the foil and bake for an additional 10-15 minutes until the cheese is bubbling and golden brown around the edges. This two-stage baking process ensures the casserole is heated through while also allowing the top to develop an appetizing color and texture. </li> <li class="MethodStepper"> <h4 class="step-title">Step 17</h4> Remove from the oven and let stand for 10 minutes before serving. This resting period allows the casserole to set, making it easier to slice and serve in intact portions. </li> <li class="MethodStepper"> <h4 class="step-title">Step 18</h4> Garnish with fresh cilantro before serving. The bright, fresh herbs provide a beautiful color contrast and add a fresh flavor note to complement the rich, creamy casserole. Serve warm with additional sour cream, salsa, or avocado if desired. </li> </ol>

Nutrition Facts (per serving)

🍽️ Serving Size: 1 wrap
🔥 Calories: 375 calories
🥑 Fat: 26 g
🧈 Saturated Fat: 15 g
🍞 Carbohydrates: 28 g
🍭 Sugar: 2 g
🍗 Protein: 12 g
🫀 Cholesterol: 120 mg
🧂 Sodium: 420 mg

Chef’s Notes

A few helpful details for making this recipe.

Can I make this Tex-Mex casserole ahead of time and freeze it?

Yes! Prepare the casserole completely but don't bake it, then cover tightly with cling film and aluminium foil before freezing for up to 3 months. When ready to eat, thaw overnight in the refrigerator and add 15-20 minutes to the baking time if still cold.

What's the best way to serve a creamy chicken casserole?

Serve this Southwestern casserole with complimentary sides like a fresh green salad, Mexican rice, refried or black beans, or guacamole. For added freshness, top each serving with diced avocado, extra sour cream, pico de gallo, or sliced jalapeños.

What's the origin of this popular Tex-Mex dish?

Despite its name, this casserole has no connection to the famous King Ranch in Texas. It likely emerged in the mid-20th century when convenience foods became popular. The layered format resembles lasagne but with Tex-Mex ingredients, creating a distinctive comfort food classic.

Want to try something else in ...

More recipes you might like

Keep exploring with more recipes from What's Baking.