King Ranch chicken casserole is creamy, cheesy, hearty and seriously delicious. This family-friendly Tex-Mex dinner can be prepped ahead and is sure to please.

This post has been updated with new photos, including step-by-step photos.
I'm so excited to share this King Ranch chicken casserole with you today. It's become a favorite in my house in the last year.
(When 2020 hit, I resorted to some comforting classics and this was one of them.)
This casserole is creamy and cheesy and hearty and has ALL the delicious flavors in every single bite. Oh man, that's the best isn't it?
We've got shredded chicken mixed with tomatoes and green chilies, onions and green peppers and some Greek yogurt (or sour cream) to get everything coated and creamy.
It's layered with corn tortillas and plenty of shredded cheese then baked until hot and bubbly. Mmmm…

Even my kids adore this casserole. (They're 7 and 10 so finding something we all agree on is, let's say, tricky some days.)
My daughter went back for seconds and that almost never happens!
It's also a great way to use a rotisserie chicken or leftover cooked, shredded chicken. (I love having that stuff on hand - it's so versatile!)
The tortillas, chicken mixture and cheese all bake together into a beautiful layered casserole that is going to bring smiles to your dinner table.
And if you love a casserole like I do (especially because you can prep them then stick it in the oven and dinner is done!), some of our other favorites are my mom's chicken divan, chicken and rice casserole and this fun chicken fajita casserole.
Oh, and in case you're wondering about today's recipe name (cause there's no Ranch seasoning or Ranch dressing involved here), it's named after the famous King Ranch in Texas.
This casserole is not thought to have actually originated at that particular ranch, it's just named in honor of it.
OK, let's get cooking!













Ingredient Notes:
Chicken: The chicken needs to be cooked for this recipe, so please plan accordingly. You can use a rotisserie chicken from the store, Instant Pot shredded chicken or crockpot shredded chicken, or some boiled or baked chicken that you chop or shred. You'll need 3 ½ to 4 cups.
Rotel: The can of Rotel does double duty here, but you could substitute a can of petite diced tomatoes and a small can of diced green chilies if you prefer. Make sure they are both well drained.
Greek yogurt: We always use Greek yogurt, but sour cream is fine here, too. Regular or low-fat or non-fat are all OK to use.
Cheese: Monterey Jack cheese adds great flavor, but you could also use a regular or white cheddar cheese if you prefer.
Tip: Be sure to let the casserole rest for about 10 minutes after you pull it out of the oven. This helps it finish setting up.
I know it'll be hard to wait. It's just so cheesy and inviting!

For serving, we love this as is, but toppings can only make things better, right?
Topping Ideas:
- Chopped fresh cilantro
- Sliced or diced avocado (or a dollop of guac)
- Greek yogurt or sour cream
- Diced fresh tomatoes or pico de gallo
- Pickled jalapeños
- Sliced green onions
- Hot sauce
As for pairings, we like to serve this King ranch casserole with a big green salad. A southwestern chopped style one is a good fit here. (You can make your own or get one of those salad kit bags from the grocery store.)
Something light and fresh, basically, to balance the cheesy goodness of the casserole.

Also, be sure to reference the notes in the recipe card if you want to know how to prep this ahead, which can be helpful on a busy day.
I've also got information in the recipe card notes on how to freeze this casserole and how to store and reheat leftovers.
Prepping and freezing the casserole can be a good option if you are gifting this to someone, whether that's new parents with a baby or someone experiencing grief, illness or a family crisis.
And there we have it. Warm, hearty, family friendly and sure to have everyone digging in, this King Ranch chicken casserole is a real winner.
I hope you give it a try soon.
Enjoy!
XO,
Kathryn
King Ranch Chicken Casserole
Ingredients
- ¼ cup unsalted butter
- 1 onion, chopped
- 1 green pepper, chopped
- ¼ cup flour
- 1 ½ cups low-sodium chicken broth
- 3 ½-4 cups cooked, shredded chicken
- 1 (10 oz.) can Rotel, well drained
- ¾ cup nonfat Greek yogurt (or sour cream)
- 12 corn tortillas
- 2-3 cups shredded Monterey Jack cheese (or sub cheddar)
Optional toppings:
- Chopped fresh cilantro, sliced or diced avocado (or a dollop of guac), Greek yogurt or sour cream, diced fresh tomatoes or pico de gallo, pickled jalapeños, sliced green onions, hot sauce
Instructions
- Preheat the oven to 375.
- Melt butter in a large skillet over medium heat. Add onion and pepper and sauté until softened, about 5 minutes.
- Sprinkle the flour over the veggies. Stir and cook for 1-2 minutes to remove the raw flour taste and until the flour is slightly browning.
- Add the broth and stir well to combine into a smooth sauce. Bring to a simmer and cook for 2-3 minutes, to let the mixture thicken, then turn off the heat.
- Stir in the shredded chicken, can of Rotel and Greek yogurt. Mix well.
- Spray the bottom of a 9x13 casserole dish. Spoon ½ cup of the chicken mixture into the bottom of the casserole dish and spread out. (It won't cover the entire casserole dish and that's fine.) Top with 6 tortillas followed by half of the remaining chicken mixture and half of the shredded cheese.
- Repeat with the remaining 6 tortillas then the remaining chicken mixture and remaining cheese.
- Bake at 375 for 40-45 minutes, until hot and bubbly.
- Remove from the oven and let stand for 10 minutes for slicing and serving to allow the casserole to set up.







Wanda says
What is Rotel?
Kathryn Doherty says
Rotel is a brand of diced tomatoes with green chilies: https://amzn.to/3zILQJ3 but as mentioned, you can sub regular petite diced tomatoes and a can of green chilies instead. Hope that helps!
Kelly says
Have you ever tried this with flour instead of corn tortillas?
Kathryn Doherty says
Hi Kelly! I have not... normally I find corn and flour tortillas to be pretty interchangeable, but in a casserole like this, I think the flour tortillas might break down a little more than the corn, which are a bit heartier. Still, I think you could try it - and I'd love to hear if you do!