King Ranch Casserole Recipe

King Ranch Casserole Recipe is a medium Tex-Mex recipe that serves 8. 880 calories per serving. Recipe by Simply Mamá Cooks on YouTube.

Prep: 15 min | Cook: 57 min | Total: 1 hr 27 min

Cost: $18.54 total, $2.32 per serving

Ingredients

  • 1 Poblano Pepper (seeded and diced)
  • 1 pint Button Mushrooms (cleaned and sliced)
  • 1 Onion (medium, diced)
  • 3 Roma Tomatoes (halved, seeds removed, diced)
  • 4 tablespoons Unsalted Butter (divided)
  • 1 teaspoon Garlic Powder
  • 1 teaspoon Onion Powder
  • 0.5 teaspoon Cracked Black Pepper
  • 1.5 tablespoons Chicken Bouillon Granules
  • 4 tablespoons All-Purpose Flour
  • 3.5 cups Whole Milk
  • 1 cup Sour Cream (optional, adds richness)
  • 2.5 pounds Shredded Chicken (cooked and shredded; rotisserie or boiled)
  • 3.5 cups Shredded Cheddar Cheese (sharp or mild, shredded)
  • 18 Corn Tortillas (6‑inch size, warmed briefly)
  • to taste Salt

Instructions

  1. Prepare Vegetables

    Seed and dice the poblano pepper, slice the button mushrooms, dice the onion, halve the Roma tomatoes, remove seeds, and dice the tomato flesh. Set the diced tomatoes aside.

    Time: PT15M

  2. Brown Mushrooms

    Heat 2 tablespoons of butter in a large skillet over medium‑high heat. Add the sliced mushrooms and sauté until they are deep golden brown, about 5 minutes.

    Time: PT5M

    Temperature: Medium‑high

  3. Sauté Onion and Poblano

    Add the diced onion and poblano pepper to the skillet with the mushrooms. Cook, stirring occasionally, until the onion is translucent and the pepper is softened, about 5 minutes.

    Time: PT5M

    Temperature: Medium

  4. Make the Roux

    Push the vegetables to the side of the skillet. Add the remaining 2 tablespoons of butter, then sprinkle in garlic powder, onion powder, cracked black pepper, and chicken bouillon. Stir to combine, then sprinkle the flour over the butter and stir constantly for about 1 minute to cook out the raw flour taste.

    Time: PT2M

    Temperature: Medium

  5. Create the Cream Sauce

    Gradually whisk in the whole milk, a little at a time, until the mixture is smooth. Continue to whisk and simmer for about 5 minutes, or until the sauce thickens and coats the back of a spoon.

    Time: PT5M

    Temperature: Medium

  6. Finish the Sauce

    Stir in the cup of sour cream (if using) until fully incorporated. Then add the shredded chicken and the reserved diced tomatoes. Mix well and taste for salt, adjusting as needed.

    Time: PT5M

  7. Preheat Oven

    Preheat the oven to 350°F (175°C).

    Time: PT5M

    Temperature: 350°F

  8. Assemble the Casserole

    Spread a thin layer of the cream‑chicken sauce on the bottom of a greased 9×13‑inch baking dish. Layer 6 corn tortillas over the sauce, overlapping slightly. Spoon a third of the remaining sauce over the tortillas, then sprinkle a third of the shredded cheddar cheese. Repeat the layers two more times, ending with a generous layer of cheese on top. Use all 18 tortillas.

    Time: PT10M

  9. Bake

    Place the assembled casserole in the preheated oven and bake for 30 minutes, or until the cheese is melted, golden, and the edges are bubbling.

    Time: PT30M

    Temperature: 350°F

  10. Rest and Serve

    Remove the casserole from the oven and let it sit for 15 minutes to set before slicing and serving.

    Time: PT15M

Nutrition Facts

Calories
880
Protein
52 g
Carbohydrates
76 g
Fat
45 g
Fiber
5 g

Dietary info: Contains dairy, Contains gluten, High protein, Nut‑free

Allergens: Dairy, Gluten

Last updated: April 7, 2026

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King Ranch Casserole Recipe

Recipe by Simply Mamá Cooks

A hearty Tex-Mex casserole packed with shredded chicken, a homemade creamy sauce, corn tortillas, and melted cheddar cheese. Perfect for potlucks, family dinners, or any gathering where comfort food is welcome.

MediumTex-MexServes 8

Shop all ingredients on Amazon in one click • Printable PDF with shopping checklist

Source Video
50m
Prep
47m
Cook
12m
Cleanup
1h 49m
Total

Cost Breakdown

$18.54
Total cost
$2.32
Per serving

Critical Success Points

  • Browning the mushrooms for deep flavor
  • Cooking the flour in the roux long enough to eliminate raw taste
  • Gradually whisking in milk to avoid lumps
  • Ensuring the sauce thickens before adding chicken and tomatoes
  • Layering tortillas evenly to prevent sogginess
  • Baking until the cheese is golden and the casserole is bubbling

Safety Warnings

  • Handle hot milk and butter carefully to avoid burns.
  • Ensure the shredded chicken is cooked to an internal temperature of 165°F (74°C) before using.
  • Use oven mitts when removing the hot casserole dish from the oven.

Frequently Asked Questions

Everything you need to know about this recipe

Q

What is the cultural significance and history of King Ranch chicken casserole in Tex-Mex cuisine?

A

King Ranch chicken casserole originated on Texas ranches as a hearty, crowd‑pleasing dish that combined Mexican flavors like chilies and corn tortillas with American comfort‑food staples such as cheese and chicken. It became popular at potlucks and family gatherings throughout the Southwest because it can be made in large batches and feeds many people.

cultural
Q

What are the traditional regional variations of King Ranch chicken casserole in Texas and the American Southwest?

A

Some regions add green chilies or Rotel for extra heat, while others incorporate black beans or corn kernels for texture. In West Texas, a spicier version may use chipotle peppers in adobo, whereas East Texas cooks might use a milder poblano and a blend of cheddar and Monterey Jack cheeses.

cultural
Q

How is King Ranch chicken casserole traditionally served in Tex-Mex gatherings or potlucks?

A

It is typically served hot, cut into squares, and accompanied by fresh salsa, guacamole, and a simple green salad. Many families also offer lime wedges on the side to brighten the rich, cheesy layers.

cultural
Q

On what occasions or celebrations is King Ranch chicken casserole commonly prepared in Tex-Mex culture?

A

The casserole is a staple for birthdays, church socials, holiday gatherings like Thanksgiving with a Tex‑Mex twist, and especially for weekend family barbecues where a make‑ahead dish is needed.

cultural
Q

What authentic traditional ingredients are essential for a classic King Ranch chicken casserole, and what are acceptable substitutes?

A

Key ingredients include shredded chicken, corn tortillas, a creamy sauce made with butter, flour, milk, and cheese, and poblano pepper for mild heat. Substitutes can be roasted green chilies for the poblano, flour tortillas for corn tortillas, or a blend of Mexican cheese instead of cheddar.

cultural
Q

Which other Tex-Mex dishes pair well with King Ranch chicken casserole for a complete meal?

A

Serve it alongside Mexican street‑style corn (elote), a cilantro‑lime rice, black bean salad, or a simple avocado‑tomato salsa. A side of refried beans or a fresh pico de gallo also complements the richness of the casserole.

cultural
Q

What are the most common mistakes to avoid when making the cream sauce for King Ranch chicken casserole?

A

Common errors include not cooking the flour long enough, which leaves a raw taste, adding milk too quickly which creates lumps, and letting the sauce boil vigorously, which can cause it to separate. Follow the gradual whisking method and keep the heat at medium.

technical
Q

Why does this King Ranch chicken casserole recipe use a homemade roux instead of canned cream soups?

A

A homemade roux gives you control over flavor, thickness, and salt content, resulting in a richer, fresher sauce without the additives found in canned soups. It also allows the sauce to coat the tortillas evenly and prevents a watery casserole.

technical
Q

How can I tell when the cream sauce has thickened enough before adding the chicken?

A

The sauce is ready when it coats the back of a spoon and a line drawn through it with your finger holds its shape for a few seconds. It should be glossy and smooth, not watery.

technical
Q

What does the YouTube channel Simply Mamá Cooks specialize in?

A

The YouTube channel Simply Mamá Cooks specializes in family‑friendly Latin American and Tex‑Mex recipes, focusing on approachable home cooking techniques, meal‑prep tips, and dishes that bring cultural flavors to everyday meals.

channel
Q

How does the YouTube channel Simply Mamá Cooks' approach to Tex-Mex cooking differ from other cooking channels?

A

Simply Mamá Cooks emphasizes making traditional Tex‑Mex dishes from scratch, often swapping processed ingredients for fresh, homemade components. The channel also highlights cultural stories behind each recipe and provides step‑by‑step visuals that cater to home cooks of all skill levels.

channel

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