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    Home » Main Course » Crock Pot Mexican Casserole

    Crock Pot Mexican Casserole

    Published: May 16, 2022 · Modified: Oct 11, 2022 by Anne Clark · This post may contain affiliate links · 5 Comments

    Jump to Recipe Print Recipe

    This Mexican Casserole packed with flavor and loaded with corn, black beans, ground beef, and rice. For an added flavor booster, we add salsa and enchilada sauce. All cooked in your crock pot for an easy all-in-one dinner!

    It's super easy to make and you can add any number of toppings to make everyone in your family happy!

    Mexican Casserole in two white bowls with chips, avocado slices, lime wedges and spoons on the side.
    Jump to:
    • Why You'll Love This
    • Why This Recipe Works
    • Ingredients
    • Step-by-Step Instructions
    • Frequently Asked Questions
    • Expert Tips
    • More Recipes to Try
    • Recipe
    • Comments

    Why You'll Love This

    Everyone has their favorite Mexican casserole recipe, and I think this is going to be yours. It's versatile and easy to make, and it always turns out perfect (even the picky kids devour this one lol)..

    Making this recipe for Cinco de Mayo is a tradition, but it definitely qualifies for a Taco Tuesday meal - or any day you want a Mexican beef and rice casserole.

    You can throw this meal together in the morning and it'll be ready to serve at dinner. Simply cook the ground beef, then add the remaining ingredients to your slow cooker.

    However, if you want an easy 30-minute Mexican casserole, try my Lazy Beef Enchilada Casserole!

    Why This Recipe Works

    This is one of my family's most-requested crock pot ground beef recipes. Once it's done simmering in the crock pot, there are lots of ways to serve it so everyone can create their perfect meal.

    • Enjoy this Crock Pot Mexican Casserole as is, right out of the crockpot when it's done. Spoon it into a bowl, add a squeeze of fresh lime juice and you're good to go. 
    • Top with shredded cheese, avocado, sour cream, chopped cilantro, green onions, lettuce, tomato - or anything you like!
    • Make nachos by serving this over tortilla chips or corn chips. Or use the chips to dip or crush and mix in.
    • Try it inside a taco shell, use it as a filling for flour tortillas, or top with strips of toasted corn tortillas.

    Ingredients

    Lots of tasty ingredients go into this Crock Pot Mexican Casserole - don't let that shy you away from making it. All these ingredients blend so well together for a flavor-packed meal.

    ingredients measured out in individual containers
    • Ground Beef - you could also use ground turkey if that's your preference
    • Onion, Bell Pepper, and Celery - for convenience, use the frozen, chopped "seasoning blend"
    • Salsa - pick your heat level, chunky or smooth, or use a can of tomatoes if preferred
    • Black Beans - or use pinto beans if that's what you have on hand 
    • Southwest Corn - this flavorful canned corn adds more flavor to your Mexican crockpot casserole than plain whole kernel corn
    • Red Enchilada Sauce - choose mild, medium, or hot in any store-bought brand
    • Butter - need I say more?
    • Chili Powder - gives this dish a slight kick and smokey flavor (try smoked paprika for a change of pace)
    • Ground Cumin - a key ingredient in taco seasoning, this gives a warm, peppery flavor (use coriander if you need a substitute)
    • Minced Garlic - use fresh or jarred, or use powdered garlic if you need to
    • Onion Powder - love this basic pantry staple but you can use onion flakes if that's all you have on hand
    • Oregano - use dried thyme if you don't have oregano
    • Cumin Seed - adds great flavor, but you can certainly leave it out if you want to
    • Black Pepper - fresh ground is best
    • Long Grain White Rice - long grain white rice won't get mushy or stick together like regular rice does
    • Lime - adds special zing as a final touch

    Step-by-Step Instructions

    For the absolute best results, follow the Recipe Card at the bottom of this post!

    This casserole has just 3 easy steps - how great is that! Just cook and drain the ground beef then add the other ingredients.

    Step 1: Brown the ground beef and drain.  Add to your crockpot.

    Cooked ground beef in pan.
    Just one easy prep - cook the ground beef!

    Step 2: Add remaining ingredients (except the lime) to the crock pot. Mix well and cook on high for 2 ½ to 3 hours or low for 4 to 5 hours - or until rice is cooked.

    Ground beef, corn, beans and other ingredients in a crockpot.
    Place all the ingredients in your crockpot, set it, and forget it for a few hours!

    Step 3: Spoon into a serving bowl and top with a squeeze of lime.  Add more of your favorite toppings such as shredded cheese, sliced avocado, sour cream, green onions, etc.  Serve with chips or use as a filling for tortillas.

    Cooked casserole in two white bowls with chips, avocado slices, lime wedges and spoons on the side.
    Serve Mexican Beef and Rice Casserole with all your favorite sides such as chips and sliced avocado. I recommend topping with shredded cheddar cheese!

    Frequently Asked Questions

    Can I make this casserole without beef?

    This casserole can be made with cooked ground turkey, cooked ground chicken, or cooked chopped or shredded chicken instead of the ground beef.

    What can I substitute for long-grain white rice?

    You can use brown rice instead but you will likely need to let this cook longer, perhaps as much as one additional hour, so please adjust the time as needed. You could also use quinoa instead of rice. However, do not use instant rice!

    Can you freeze this casserole?

    This casserole freezes well.  Allow it to cool completely, then place into a freezer container or sealable plastic freezer bag (write the date on the bag so you can easily remember it). It will stay fresh for up to 3 months. Thaw in the fridge the day before you plan to eat it. Reheat in a pot on the stove or in the microwave.

    How do you toast corn tortillas?

    I love to top this casserole with toasted corn tortillas! It's easy to do and here's how. Heat a skillet to medium-high heat. Heat each side of the tortilla for 15-20 seconds or until it starts to get toasty. You can also toast a large batch of corn tortillas in the oven by brushing them with a little olive oil, slicing into strips, placing them on a sheet pan, and baking them at 350F for about 10-15 minutes or until toasty brown.

    What to serve with Crock Pot Mexican Casserole

    This casserole is pretty filling as by itself! But it's really delicious served with crispy chips, guacamole, fresh chopped tomatoes, or a simple green salad.

    Expert Tips

    • Have you tried the frozen, chopped onion, bell pepper, and celery blend? Once I discovered this, I have yet to chop another onion (and I have not shed any tears since!).  Some people may gawk at the idea of using frozen, and fresh is better, I won't try to convince you otherwise. But I love how easy and convenient the pre-chopped, frozen version is for meal prep!
    • Every time I make one of my slow cooker Mexican recipes, I ask myself, "why don't I use this crock pot more often?" Slow cooking brings out more flavor in your food, won't heat up your house when it's hot out, and it's super convenient if you want to take your meal to the office or another person's home.
    • Store any leftovers in airtight containers in the refrigerator for up to 3 days. I prefer to use BPA-free glass containers with locking lids.  Check out this 18-piece set of glass food storage containers with locking lids from Bayco, available now on Amazon.
    Mexican Casserole in two white bowls with chips, avocado slices, lime wedges and spoons on the side.

    More Recipes to Try

    • baked casserole in white rectangular dish. Topped with avocado slices and dollop of sour cream. One serving missing from casserole.
      Layered Beef Enchilada Casserole
    • Three chicken quesadillas on white rectangular plate garnished with cilantro flakes.
      Rotisserie Chicken Quesadillas
    • Taco meat pinwheels in a stainless steel meal prep container with guacamole and green grapes on the side.
      Leftover Taco Meat Pinwheels
    • White bowl filled with pork carnitas, black beans, corn, salsa, garnished with lime slices and avocado wedges.
      Carnitas Burrito Bowls (Instant Pot)

    If you tried this recipe, please let me know by leaving a comment! I'd love to hear from you.

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    Recipe

    Cooked casserole in two white bowls with chips, avocado slices, lime wedges and spoons on the side.

    Crock Pot Mexican Casserole

    This casserole is packed with flavor and loaded with ground beef, corn, black beans, salsa, and rice. Simply brown the beef, then add all ingredients to your slow cooker, turn it on, and let it do its magic!
    4.29 from 7 votes
    Print Pin For Later Rate
    Course: Main Course
    Cuisine: American, Mexican
    Prep Time: 15 minutes minutes
    Cook Time: 4 hours hours
    Total Time: 4 hours hours 15 minutes minutes
    Servings: 6
    Calories: 596kcal
    Author: Anne Clark | My Kitchen Serenity

    Ingredients

    • 1 pound ground beef See Recipe Notes
    • 2 cups frozen chopped onion, bell pepper, and celery "seasoning blend" See Recipe Notes
    • 1 16 oz jar of salsa
    • 1 15 oz can of black beans, drained and rinsed
    • 1 14.75 oz can of southwest or fiesta corn, drained
    • 2 10 oz cans of red enchilada sauce
    • 2 tablespoons butter
    • 2 tablespoons chili powder
    • 1 teaspoon cumin
    • 1 teaspoon minced garlic
    • 1 teaspoon onion powder
    • 1 teaspoon oregano
    • ½ teaspoon cumin seed
    • ½ teaspoon black pepper
    • 1 cup long grain white rice, uncooked See Recipe Notes
    • 2 cups water
    • 1 lime
    • Your favorite toppings of choice: a few drops of fresh lime juice, shredded cheese, avocado, sour cream, greek yogurt, guacamole, lettuce, tomato, etc.
    Prevent your screen from going dark

    Instructions

    • Brown the ground beef and drain. Add to slow cooker.
    • Add remaining ingredients to the slow cooker. Mix well. Cover and cook on high for 2-½ to 3 hours or low for 4-5 hours or until rice is cooked.
    • Top with your favorite items such as a squeeze of fresh lime, chopped cilantro, avocado, shredded cheese, green onions, sour cream, lettuce, tomato, etc.  Eat with tortilla chips or corn chips.

    Notes

    NOTES: (1)  You can use cooked ground turkey, cooked ground chicken, or cooked chopped or shredded chicken instead of the cooked ground beef.
    (2)  I like to use the frozen seasoning blend to save myself some chopping time.  However, you can use fresh bell pepper, onion, and celery if you desire.  I would use 1 cup finely chopped fresh onion, 1 cup finely chopped fresh bell pepper, and ½ cup finely chopped fresh celery.
    (3)  If you plan to use brown rice instead of white rice, you'll probably need to cook it longer.  Perhaps as much as one hour longer using brown rice.
    Tried this Recipe? Tag me Today!Mention @mykitchenserenity or tag #mykitchenserenity on Instagram!!

    Nutrition

    Serving: 1serving | Calories: 596kcal | Carbohydrates: 78g | Protein: 28g | Fat: 21g | Saturated Fat: 9g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 64mg | Sodium: 1757mg | Potassium: 1057mg | Fiber: 15g | Sugar: 13g | Vitamin A: 6110IU | Vitamin C: 21mg | Calcium: 119mg | Iron: 6mg

    This Mexican beef and rice recipe was originally published in 2021 and updated in 2022.

    Nutritional information is provided as a courtesy to my readers. I'm not a nutritionist and I don't guarantee the accuracy of this data. The data may differ according to the brands I used versus the brands you use. To calculate the data yourself using your brands, try using an online nutrition calculator or app.

    « Cheesy Savory Zucchini Pie
    Easy Garlic Honey Chicken Crock Pot Recipe »

    About Anne Clark

    Hi! I'm Anne, the founder and content creator at My Kitchen Serenity, a food blog focused on serving the needs of busy moms and dads who are looking for easy and delicious recipes for the family.

    Reader Interactions

    Comments

    1. Karrie Rukamp

      November 21, 2024 at 6:25 pm

      Can you substitute the meatless crumbles for meat to make it vegetarian?

      Reply
      • Anne Clark

        November 23, 2024 at 10:53 am

        Hi Karrie! Thanks for a great question. I have not tried this, but I don't see a reason why cooked meatless crumbles would not work the same. If you try it, please let me know how it turned out. Thanks, again!

        Reply
    2. Gerry

      June 24, 2025 at 12:26 pm

      Is this soupy like a chili? Or 'hang together' like an oven-baked casserole? I'm wondering about wrapping it in a hand-held tortilla.

      Reply
      • Anne Clark

        June 25, 2025 at 11:43 am

        Hi Gerry. It's not soupy and actually thickens quite a bit as it cools down and is thicker the next day. I think it makes a great filling for tortillas.

        Reply
        • Gerry

          June 25, 2025 at 2:05 pm

          Thanks! Just what I wanted to hear! 🙂

          Reply
    4.29 from 7 votes (7 ratings without comment)

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    Hi. I’m Anne and I’m happy to share with you my easy, family-friendly recipes. I’ve been cooking for my family for 30 years, and what I’ve learned is that most busy families appreciate easy homemade meals. Now that the kids are grown, my passion is creating and sharing flavorful food for you and your family to enjoy as well. If you have any questions, feel free to email me at Anne@mykitchenserenity.com. 

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