King Ranch Chicken Casserole: A Hearty Tex-Mex Delight

King Ranch Chicken Casserole with Corn Tortillas

Shredded chicken, corn tortillas, tomatoes with green chiles, and melted cheese make King Ranch chicken casserole a filling Tex-Mex dinner. The tortillas soften in a creamy sauce as the casserole bakes, giving it the texture of layered enchiladas that can be scooped straight from the pan.

This version uses cooked chicken and condensed soups, so there is no separate sauce to thicken. Sauté the onion and bell pepper, stir together the filling, and build two layers in a baking dish. A rotisserie chicken or leftover roasted chicken works well, provided it has been stored safely.

King Ranch Chicken Casserole Recipe

Yield: 8 servings
Prep time: About 25 minutes, including sautéing the vegetables
Baking time: About 40–45 minutes
Resting time: 10 minutes
Total time: About 1 hour 15 minutes to 1 hour 20 minutes
Course: Main dish
Cuisine: Tex-Mex

Timing is approximate and assumes the chicken is already cooked. A chilled casserole will need additional baking time.

Use a 9 × 13-inch (approximately 23 × 33 cm) baking dish, a large skillet, a mixing bowl, foil, and a food thermometer.

Ingredients

• 1 tablespoon (15 mL) neutral cooking oil, plus a little for greasing the dish
• 1 medium onion, diced, about 1 cup (150 g)
• 1 medium bell pepper, diced, about 1 cup (150 g)
• 2 garlic cloves, minced
• 1 can condensed cream of chicken soup, 10.5 ounces (about 300 g)
• 1 can condensed cream of mushroom soup, 10.5 ounces (about 300 g)
• 1 can diced tomatoes with green chiles, 10 ounces (about 285 g), undrained
• 1 teaspoon chili powder
• 1 teaspoon ground cumin
• ½ teaspoon paprika
• ¼ teaspoon black pepper
• 4 cups cooked, shredded chicken (about 560 g)
• Salt, if needed
• 12 corn tortillas, approximately 6 inches (15 cm) across
• 2 cups shredded cheddar and Monterey Jack cheese (about 225 g), divided
• Chopped fresh cilantro and sour cream, optional, for serving

Use the soups straight from the cans without adding the water or milk called for on their labels. The tomato liquid supplies moisture for the tortillas. Choose mild tomatoes with green chiles if you want less heat.

Instructions

1. Prepare the oven and dish. Heat the oven to 350°F (175°C). Lightly grease the baking dish.
2. Cook the vegetables. Heat the oil in the skillet over medium heat. Add the onion and bell pepper. Cook for about 6–8 minutes, stirring occasionally, until softened. Add the garlic and cook for another 30–60 seconds, just until fragrant.
3. Mix the filling. In the mixing bowl, combine both condensed soups, the undrained tomatoes with green chiles, chili powder, cumin, paprika, and black pepper. Stir in the cooked vegetables and shredded chicken. Taste before adding salt, since the soups, cheese, and cooked chicken may already supply enough.
4. Build the layers. Spread a few spoonfuls of filling across the bottom of the dish. Tear six tortillas into broad strips or pieces and arrange them over this thin coating, overlapping as needed to cover most of the bottom. Spread half of the remaining filling over the tortillas, then sprinkle with 1 cup (about 110 g) of cheese. Repeat with the remaining tortillas, filling, and cheese.
5. Bake covered, then uncover. Cover with foil, leaving a little space above the cheese. Bake for 30 minutes. Remove the foil and bake for about 10–15 minutes longer, until the sauce bubbles and the cheese melts. Check that the center reaches 165°F (74°C) with a food thermometer. Continue baking if needed; browned cheese alone does not establish that the center is hot enough.[1]
6. Rest and serve. Let the casserole stand for 10 minutes before scooping. The filling settles as it rests, making portions easier to serve. Add cilantro or sour cream at the table if desired.

Choosing Chicken, Tortillas, and Cheese

Use cooked chicken with a fairly plain seasoning. Roasted, poached, or rotisserie chicken can all work. Remove bones and skin, then shred the meat into bite-size pieces. Breast meat, thigh meat, or a mixture is suitable. Strong barbecue or lemon seasoning will change the flavor of the finished dish.

Corn tortillas give the casserole its corn flavor and soften into the filling. Fresh, pliable tortillas can go directly into the layers. If they are stiff, warm them briefly in the microwave under a damp paper towel so they are easier to handle. No frying step is needed for this version.

Flour tortillas can be substituted, but expect a softer, sometimes pastier layer. Use enough to cover each layer with modest overlap; larger flour tortillas will require fewer than the number listed in the recipe.

Cheddar adds a sharper flavor, while Monterey Jack makes a milder cheese layer. Either can be used alone. Pepper Jack is an option for additional heat, although it is worth tasting the tomato-and-chile mixture before adding several spicy ingredients at once.

If cream of mushroom soup is unavailable, use a second can of condensed cream of chicken soup of the same size. The flavor will change slightly. Reduced-sodium soups are another option when the chicken is heavily seasoned.

Keeping the Filling from Turning Watery or Dry

The filling should be thick enough to spread over the tortillas. Do not dilute the condensed soups, and cook any added vegetables before mixing them into the sauce. Frozen vegetables should be thawed and drained well. Raw mushrooms, zucchini, or a large amount of spinach can release enough liquid to change the consistency.

Include the liquid from the specified can of tomatoes. Replacing it with a larger can of plain diced tomatoes can upset the balance between sauce and tortillas. If making that substitution, drain excess liquid and recognize that both the seasoning and consistency may differ.

Keep the first part of the bake covered so the surface does not dry out while the center heats. If the cheese browns before the casserole reaches temperature, loosely cover the dish again and continue baking. Dry tortilla edges usually indicate that they were left exposed; spread the filling close to the sides as you assemble the layers.

This is a soft casserole served with a spoon or spatula. It will not hold the firm, clean-edged shape of a slice of lasagna.

Making It Ahead and Freezing Portions

For dinner the following day, assemble the casserole with chilled chicken and filling that has cooled sufficiently to avoid warming the chicken unnecessarily. Cover and refrigerate promptly, then bake within 24 hours. Follow the baking dish manufacturer’s directions for moving it from refrigerator to oven.

Keep the casserole covered for the initial bake. Begin checking around the recipe’s usual baking time, but allow additional time for the cold filling to reach 165°F (74°C). There is no single reliable extra baking time for every pan, refrigerator, and oven.

For freezer meals, baked portions are convenient because they can be reheated individually. Divide leftovers into shallow containers and refrigerate promptly. Once chilled, pack portions in freezer-safe containers, label them, and freeze. Aim to use them within about 2–3 months for quality. The tortillas will be softer after thawing.

Thaw portions in the refrigerator. Reheat covered in an oven set to 350°F (175°C), or use a microwave, until the center reaches 165°F (74°C). In the microwave, rotate the container and check several places for cold spots. A small splash of water can help if a portion looks dry.[2]

Serving and Storing Leftovers

A cabbage slaw with lime dressing, a green salad, or steamed green beans gives the meal a fresh accompaniment. Rice or beans can stretch the dinner when serving a larger group. Sour cream can be offered separately so each person can choose how much to add.

Refrigerate leftovers within two hours of cooking or serving, or within one hour when the surrounding temperature is above 90°F (32°C). Divide a large amount into shallow containers for faster cooling. Keep the refrigerator at 40°F (4°C) or below and use refrigerated leftovers within 3–4 days.[2]

If the chicken was already leftover when the casserole was assembled, account for its earlier refrigerator time. Baking it into a new dish should not be treated as a fresh storage period. Freeze portions promptly when you do not expect to eat them soon.

Sources

[1] USDA Food Safety and Inspection Service: Keep Food Safe! Food Safety Basics.

[2] USDA Food Safety and Inspection Service: Leftovers and Food Safety.