Slow Cooker Fiesta Chicken and Rice Casserole


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Slow Cooker Fiesta Chicken and Rice Casserole is a creamy and hearty dinner!

fiesta chicken rice with cheese in a slow cooker.
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Hi again! I’m back this week with this Slow Cooker Fiesta Chicken and Rice Casserole. This casserole is packed full of flavor! I love casseroles with rice in them, they seem to have a comforting taste to them, probably the carbs, haha.

My mom made a rice casserole growing up that had chicken, cream of chicken soup, broccoli and cheese. Though this casserole has totally different flavors, it sure reminds me of the broccoli dish my mom would make, the same stick to your ribs, creamy type of casserole.

I don’t add the rice until the end, it’s this Farmhouse Spanish rice pictured below. I never add rice straight to the slow cooker, I either cook it separate then add it, or I use Minute rice. This time I cooked up boxed Spanish rice on the stovetop.

fiesta corn, cream of chicken, box of spanish rice, cheese, diced tomatoes and onion.

Below is the photo of the ingredients that get cooked for 6 hours: chicken, seasonings, soup, onion, Mexicorn, and jalapeño. If you don’t know what Mexicorn is, you can see what it looks like. Mexicorn is corn with red and green bell peppers added.

chciken with corn and jalapenos on top.

I cook the rice as directed on the package then stir it into the chicken and sauce in the slow cooker at the end of the cooking time. I also add cheese and sour cream.

cooked spanish rice in a pan.

I let that cook for 20 minutes more for the flavors to combine and to let the cheese melt.

close up of fiesta chicken casserole with spoon in it.

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fiesta chicken casserole with spoon in it.

Slow Cooker Fiesta Chicken and Rice Casserole

4.97 from 27 votes
Prep Time: 35 minutes
Cook Time: 6 hours 20 minutes
Total Time: 6 hours 55 minutes
Servings: 6
Creamy and chicken rice casserole in the slow cooker.


  • 1 1/2 lbs. boneless skinless chicken breasts
  • 1/4 tsp. pepper
  • 1/4 garlic powder
  • 1/2 tsp. chili powder
  • 10.5 oz. can cream of chicken soup , don't add water
  • 1/2 cup diced white onion
  • 11 oz. can Mexicorn, drained , (this is corn with peppers in it)
  • 1 seeded jalapeno, minced

These ingredients are added at the end:

  • 6 oz. box Farmhouse Spanish rice, (follow stove-top instructions)
  • 14 oz. can diced tomatoes , needed to make the rice
  • 2 Tbsp. salted butter, needed to make the rice
  • 1 1/2 cups water, needed to make the rice
  • 3 cups shredded sharp cheese, divided
  • 1/2 cup sour cream


  • Add the chicken to the slow cooker. Sprinkle over the pepper, garlic powder and chili powder.
  • Spread over the cream of chicken soup. Add the onions, Mexicorn, and jalapeno. (DO NOT ADD RICE, CHEESE OR SOUR CREAM YET!)
  • Cover and cook on LOW for 6 hours, without opening the lid during the cooking time.
  • Towards the end of the cooking time start preparing the Farmhouse Spanish rice in a pan on the stove-top, you will need the diced tomatoes, butter and water to prepare. (If you use a different brand of Spanish rice use the ingredients listed on the box you buy)
  • Shred the chicken with 2 forks, add the prepared rice, sour cream and 2 cups of the shredded cheese. Stir. Add remaining cheese on top and place the lid back on.
  • Put the slow cooker on to HIGH and cook for an additional 20 minutes to let the flavors come together and to allow the cheese to melt.

How to Video

Sarah’s Notes

Nutritional values are approximate. Please use your own calculations if you require a special diet. Values below are for 1/6 of the recipe.


Calories: 634kcal | Carbohydrates: 41g | Protein: 44g | Fat: 33g | Saturated Fat: 18g | Cholesterol: 156mg | Sodium: 1483mg | Potassium: 775mg | Fiber: 3g | Sugar: 6g | Vitamin A: 1199IU | Vitamin C: 16mg | Calcium: 469mg | Iron: 2mg

Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

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Recipe Rating


  1. Jane says:

    This looks great and going to make it today! Can you freeze leftover. Thanks!!

    1. Sarah Olson says:

      Yes, this freezes well.

  2. Tila Stevenson says:

    5 stars
    Can’t wait to try this! I can only find the Knorr rice sides here but they don’t add the tomatoes to make theirs. Can I just add them at the end with the rice instead?

    1. Sarah Olson says:

      Yes, that would work fine!

  3. Helen says:

    Can you leave out the rice? Has anyone done this? Trying to make it more diabetic friendly.

    1. Sarah Olson says:

      Yes, it will just be saucier.

    2. Carrie says:

      Cauliflower rice might work, too

  4. alicia says:

    will this recipe work for a 4 quart slow cooker?

    1. Sarah Olson says:

      I think it should fit.

  5. Drea' says:

    5 stars
    Love this recipe. I did increase the amount on the onions, garlic & ground pepper.

  6. Saskia says:

    5 stars
    I made this recipe tonight and it was great. The whole family emptied their plates,so it is a keeper! I cannot buy boxed Spanish rice or Mexicorn where I live. For the Mexicorn, I substituted a can of corn and a fresh green and red bell pepper. I looked up a recipe for Spanish rice and with just a few ingredients, it was easy to make.

    1. Pono says:

      5 stars
      How much rice did you end up putting in?

  7. Bob says:

    2nd time I’ve made this receipe. I absolutely love it

  8. Kathy Bradley says:

    5 stars
    Made this tonight was excellent but I added taco seasoning packet to spices on chicken and used southwestern corn because I couldn’t find mexicorn (same as Mexicorn but has black beans) and it was great!!

  9. Amy says:

    OMG this recipe is truly amazing. Thanks for sharing. It is very budget friendly and I think we have enough to feed an army. Hope the hubby loves it as much as I did.